def buildContigSizes(infile, outfile):
'''
Get contig sizes from indexed genome :term:`fasta` files and
outputs to a text file.
Parameters
----------
infile : str
infile is constructed from the `PARAMS` variable to retrieve
the `genome` :term:`fasta` file
Returns
-------
outfile : str
outfile is a text format file that contains two columns, matched
contig name and contig size (in nucleotides). The output file
name is defined in `PARAMS: interface_contigs`.
'''
prefix = P.snip(infile, ".fasta")
fasta = IndexedFasta.IndexedFasta(prefix)
contigs = []
for contig, size in fasta.getContigSizes(with_synonyms=False).items():
contigs.append([contig, size])
df_contig = pd.DataFrame(contigs, columns=['contigs', 'size'])
df_contig.sort_values('contigs', inplace=True)
df_contig.to_csv(outfile, sep="\t", header=False, index=False)
def writeContigSizes(genome, outfile):
'''write contig sizes to outfile for UCSC tools.
'''
outf = iotools.openFile(outfile, "w")
fasta = IndexedFasta.IndexedFasta(
os.path.join(PARAMS["genome_dir"], genome))
for contig, size in fasta.getContigSizes(with_synonyms=False).items():
outf.write("%s\t%i\n" % (contig, size))
outf.close()
def get_contig_cluster(infile, outfile):
"""This will generate a contig file of the cluster genome"""
fasta = IndexedFasta.IndexedFasta(infile)
contigs = []
for contig, size in fasta.getContigSizes(with_synonyms=False).items():
contigs.append([contig, size])
df_contig = pd.DataFrame(contigs, columns=['contigs', 'size'])
df_contig.sort_values('contigs', inplace=True)
df_contig.to_csv(outfile, sep="\t", header=False, index=False)
def runMEME(track, outfile, dbhandle):
'''run MEME to find motifs.
In order to increase the signal/noise ratio,
MEME is not run on all intervals but only the
top 10% of intervals (peakval) are used.
Also, only the segment of 200 bp around the peak
is used and not the complete interval.
* Softmasked sequence is converted to hardmasked
sequence to avoid the detection of spurious motifs.
* Sequence is run through dustmasker
This method is deprecated - use runMEMEOnSequences instead.
'''
# job_options = "-l mem_free=8000M"
target_path = os.path.join(os.path.abspath(P.get_params()["exportdir"]),
"meme", outfile)
fasta = IndexedFasta.IndexedFasta(
os.path.join(P.get_params()["genome_dir"],
P.get_params()["genome"]))
tmpdir = P.get_temp_dir(".")
tmpfasta = os.path.join(tmpdir, "in.fa")
nseq = writeSequencesForIntervals(
track,
tmpfasta,
dbhandle,
full=False,
masker=P.as_list(P.get_params()['motifs_masker']),
halfwidth=int(P.get_params()["meme_halfwidth"]),
maxsize=int(P.get_params()["meme_max_size"]),
proportion=P.get_params()["meme_proportion"],
min_sequences=P.get_params()["meme_min_sequences"])
if nseq == 0:
E.warn("%s: no sequences - meme skipped" % outfile)
iotools.touch_file(outfile)
else:
statement = '''
meme %(tmpfasta)s -dna -revcomp -mod %(meme_model)s -nmotifs %(meme_nmotifs)s -oc %(tmpdir)s -maxsize %(meme_max_size)s %(meme_options)s > %(outfile)s.log
'''
P.run(statement)
collectMEMEResults(tmpdir, target_path, outfile)
def exportSequencesFromBedFile(infile, outfile, masker=None, mode="intervals"):
'''export sequences for intervals in :term:`bed`-formatted *infile*
to :term:`fasta` formatted *outfile*
'''
track = P.snip(infile, ".bed.gz")
fasta = IndexedFasta.IndexedFasta(
os.path.join(P.get_params()["genome_dir"],
P.get_params()["genome"]))
outs = iotools.open_file(outfile, "w")
ids, seqs = [], []
for bed in Bed.setName(Bed.iterator(iotools.open_file(infile))):
lcontig = fasta.getLength(bed.contig)
if mode == "intervals":
seqs.append(fasta.getSequence(bed.contig, "+", bed.start, bed.end))
ids.append("%s_%s %s:%i..%i" %
(track, bed.name, bed.contig, bed.start, bed.end))
elif mode == "leftright":
l = bed.end - bed.start
start, end = max(0, bed.start - l), bed.end - l
ids.append("%s_%s_l %s:%i..%i" %
(track, bed.name, bed.contig, start, end))
seqs.append(fasta.getSequence(bed.contig, "+", start, end))
start, end = bed.start + l, min(lcontig, bed.end + l)
ids.append("%s_%s_r %s:%i..%i" %
(track, bed.name, bed.contig, start, end))
seqs.append(fasta.getSequence(bed.contig, "+", start, end))
masked = maskSequences(seqs, masker)
outs.write("\n".join([">%s\n%s" % (x, y) for x, y in zip(ids, masked)]))
outs.close()
def buildContigBed(infile, outfile):
'''
Gets the contig sizes and co-ordinates from an indexed genome :term:`fasta`
file and outputs them to :term:`BED` format
Parameters
----------
infile : str
infile is constructed from `PARAMS` variable to retrieve
the `genome` :term:`fasta` file
Returns
-------
outfile : str
:term:`BED` format file containing contig name, value (0) and contig size
in nucleotides. The output file name is defined in
`PARAMS: interface_contigs_bed`
'''
prefix = P.snip(infile, ".fasta")
fasta = IndexedFasta.IndexedFasta(prefix)
outs = iotools.open_file(outfile, "w")
for contig, size in fasta.getContigSizes(with_synonyms=False).items():
outs.write("%s\t%i\t%i\n" % (contig, 0, size))
outs.close()
def main(argv=None):
"""script main.
parses command line options in sys.argv, unless *argv* is given.
"""
if argv is None:
argv = sys.argv
parser = E.ArgumentParser(description=__doc__)
parser.add_argument("--version", action='version', version="1.0")
parser.add_argument("-g",
"--genome-file",
dest="genome_file",
type=str,
help="filename with genome (indexed).")
parser.add_argument("-w",
"--windows-bed-file",
dest="filename_windows",
type=str,
help="gff file with windows to use.")
parser.add_argument("-d",
"--filename-data",
dest="filename_data",
type=str,
help="gff file with data to use.")
parser.add_argument("--is-gtf",
dest="is_gtf",
action="store_true",
help="filename-data is gtf file")
parser.add_argument("-f",
"--features",
dest="features",
type=str,
action="append",
choices=("GC", ),
help="features to compute.")
parser.add_argument("-c",
"--decorator",
dest="decorator",
type=str,
choices=("counts", "gc", "gc3", "mean-length",
"median-length", "percent-coverage",
"median-score", "mean-score", "stddev-score",
"min-score", "max-score"),
help="decorators to use.")
parser.add_argument("-e",
"--skip-empty",
dest="skip_empty",
action="store_true",
help="skip empty windows.")
parser.add_argument(
"-t",
"--transform=",
dest="transform",
type=str,
choices=("none", "overlap", "complement", "third_codon"),
help="transform to use when mapping overlapping regions onto window.")
parser.set_defaults(
genome_file=None,
filename_windows=None,
filename_data=None,
features=[],
skip_empty=False,
decorator="counts",
transform="none",
is_gtf=False,
)
(args) = E.start(parser)
# test_transform_third_codon()
if not args.filename_windows:
raise ValueError("please supply a gff file with window information.")
if args.loglevel >= 1:
args.stdlog.write("# reading windows...")
args.stdlog.flush()
windows = GTF.readAsIntervals(
GTF.iterator(iotools.open_file(args.filename_windows, "r")))
if args.loglevel >= 1:
args.stdlog.write("done\n")
args.stdlog.flush()
if args.filename_data:
if args.loglevel >= 1:
args.stdlog.write("# reading data...")
args.stdlog.flush()
if args.is_gtf:
gff_data = GTF.readFromFile(
iotools.open_file(args.filename_data, "r"))
else:
gff_data = GTF.readFromFile(
IOTOols.open_file(args.filename_data, "r"))
if args.loglevel >= 1:
args.stdlog.write("done\n")
args.stdlog.flush()
data_ranges = GTF.SortPerContig(gff_data)
else:
# use windows to compute properties
# by supplying no data and asking for the complement = original window
gff_data = None
data_ranges = None
args.transform = "complement"
map_contig2size = {}
if args.genome_file:
fasta = IndexedFasta.IndexedFasta(args.genome_file)
map_contig2size = fasta.getContigSizes()
else:
for contig, values in list(windows.items()):
map_contig2size[contig] = max(lambda x: x[1], values)
fasta = None
contigs = list(map_contig2size.keys())
contigs.sort()
# proceed contig wise
noutput_contigs, ncontigs_skipped_windows, ncontigs_skipped_data = 0, 0, 0
args.stdout.write("\t".join(
map(str, ("contig", "start", "end", "ngenes", "ntranscripts", "n1",
"l1", "n2", "l2", "score", "extra_info"))) + "\n")
for contig in contigs:
skip = False
if contig not in windows:
ncontigs_skipped_windows += 1
skip = True
if data_ranges and contig not in data_ranges:
ncontigs_skipped_data += 1
skip = True
if skip:
continue
noutput_contigs += 1
if data_ranges:
annotateWindows(
contig, windows[contig],
gff_data[data_ranges[contig][0]:data_ranges[contig][1]], fasta,
args)
else:
annotateWindows(contig, windows[contig], [], fasta, args)
E.info(
"ninput_windows=%i, noutput_contigs=%i, ninput_contigs=%i, nskipped_windows=%i, nskipped_data=%i"
% (len(windows), noutput_contigs, len(contigs),
ncontigs_skipped_windows, ncontigs_skipped_data))
E.stop()
def main(argv=None):
if argv is None:
argv = sys.argv
parser = E.OptionParser(
version="%prog version: $Id$",
usage=globals()["__doc__"])
parser.add_option("-g", "--genome-file", dest="genome_file", type="string",
help="filename with genomic sequence to retrieve "
"sequences from.")
parser.add_option("-m", "--masker", dest="masker", type="choice",
choices=("dust", "dustmasker", "softmask", "none"),
help="apply masker to mask output sequences "
"[%default].")
parser.add_option("--output-mode", dest="output_mode", type="choice",
choices=("intervals", "leftright", "segments"),
help="what to output. "
"'intervals' generates a single sequence for "
"each bed interval. 'leftright' generates two "
"sequences, one in each direction, for each bed "
"interval. 'segments' can be used to output "
"sequence from bed12 files so that sequence only covers "
"the segements [%default]")
parser.add_option("--min-sequence-length", dest="min_length", type="int",
help="require a minimum sequence length [%default]")
parser.add_option("--max-sequence-length", dest="max_length", type="int",
help="require a maximum sequence length [%default]")
parser.add_option(
"--extend-at", dest="extend_at", type="choice",
choices=("none", "3", "5", "both", "3only", "5only"),
help="extend at 3', 5' or both or no ends. If 3only or 5only "
"are set, only the added sequence is returned [default=%default]")
parser.add_option(
"--extend-by", dest="extend_by", type="int",
help="extend by # bases [default=%default]")
parser.add_option(
"--use-strand", dest="ignore_strand",
action="store_false",
help="use strand information and return reverse complement "
"on intervals located on the negative strand. "
"[default=%default]")
parser.set_defaults(
genome_file=None,
masker=None,
output_mode="intervals",
min_length=0,
max_length=0,
extend_at=None,
extend_by=100,
ignore_strand=True,
)
(options, args) = E.start(parser)
if options.genome_file:
fasta = IndexedFasta.IndexedFasta(options.genome_file)
contigs = fasta.getContigSizes()
fasta.setConverter(IndexedFasta.getConverter("zero-both-open"))
counter = E.Counter()
ids, seqs = [], []
E.info("collecting sequences")
for bed in Bed.setName(Bed.iterator(options.stdin)):
counter.input += 1
lcontig = fasta.getLength(bed.contig)
if options.ignore_strand:
strand = "+"
else:
strand = bed.strand
if options.output_mode == "segments" and bed.columns == 12:
ids.append("%s %s:%i..%i (%s) %s %s" %
(bed.name, bed.contig, bed.start, bed.end, strand,
bed["blockSizes"], bed["blockStarts"]))
seg_seqs = [fasta.getSequence(bed.contig, strand, start, end)
for start, end in bed.toIntervals()]
seqs.append("".join(seg_seqs))
elif (options.output_mode == "intervals" or
options.output_mode == "segments"):
ids.append("%s %s:%i..%i (%s)" %
(bed.name, bed.contig, bed.start, bed.end, strand))
seqs.append(
fasta.getSequence(bed.contig, strand, bed.start, bed.end))
elif options.output_mode == "leftright":
l = bed.end - bed.start
start, end = max(0, bed.start - l), bed.end - l
ids.append("%s_l %s:%i..%i (%s)" %
(bed.name, bed.contig, start, end, strand))
seqs.append(fasta.getSequence(bed.contig, strand, start, end))
start, end = bed.start + l, min(lcontig, bed.end + l)
ids.append("%s_r %s:%i..%i (%s)" %
(bed.name, bed.contig, start, end, strand))
seqs.append(fasta.getSequence(bed.contig, strand, start, end))
E.info("collected %i sequences" % len(seqs))
masked = Masker.maskSequences(seqs, options.masker)
options.stdout.write(
"\n".join([">%s\n%s" % (x, y) for x, y in zip(ids, masked)]) + "\n")
E.info("masked %i sequences" % len(seqs))
counter.output = len(seqs)
E.info("%s" % counter)
E.stop()
def main(argv=sys.argv):
parser = E.ArgumentParser(description=__doc__)
# IMS: new method: extend intervals by set amount
parser.add_argument("-m",
"--method",
dest="methods",
type=str,
action="append",
choices=("merge", "filter-genome", "bins", "block",
"sanitize-genome", "shift", "extend",
"filter-names", "rename-chr"),
help="method to apply")
parser.add_argument("--num-bins",
dest="num_bins",
type=int,
help="number of bins into which to merge (used for "
"method `bins)")
parser.add_argument("--bin-edges",
dest="bin_edges",
type=str,
help="bin_edges for binning method")
parser.add_argument(
"--binning-method",
dest="binning_method",
type=str,
choices=("equal-bases", "equal-intervals", "equal-range"),
help="method used for binning (used for method `bins` if no "
"bin_edges is given)")
parser.add_argument(
"--merge-distance",
dest="merge_distance",
type=int,
help="distance in bases over which to merge that are not "
"directly adjacent")
parser.add_argument(
"--merge-min-intervals",
dest="merge_min_intervals",
type=int,
help="only output merged intervals that are build from at least "
"x intervals")
parser.add_argument("--merge-by-name",
dest="merge_by_name",
action="store_true",
help="only merge intervals with the same name")
parser.add_argument(
"--merge-and-resolve-blocks",
dest="resolve_blocks",
action="store_true",
help="When merging bed12 entrys, should blocks be resolved?")
parser.add_argument("--merge-stranded",
dest="stranded",
action="store_true",
help="Only merge intervals on the same strand")
parser.add_argument(
"--remove-inconsistent-names",
dest="remove_inconsistent_names",
action="store_true",
help="when merging, do not output intervals where the names of "
"overlapping intervals do not match")
parser.add_argument("--offset",
dest="offset",
type=int,
help="offset for shifting intervals")
parser.add_argument("-g",
"--genome-file",
dest="genome_file",
type=str,
help="filename with genome.")
parser.add_argument("-b",
"--bam-file",
dest="bam_file",
type=str,
help="bam-formatted filename with genome.")
parser.add_argument("--filter-names-file",
dest="names",
type=str,
help="list of names to keep. One per line")
parser.add_argument(
"--rename-chr-file",
dest="rename_chr_file",
type=str,
help="mapping table between old and new chromosome names."
"TAB separated 2-column file.")
parser.set_defaults(methods=[],
merge_distance=0,
binning_method="equal-bases",
merge_by_name=False,
genome_file=None,
rename_chr_file=None,
bam_file=None,
num_bins=5,
merge_min_intervals=1,
bin_edges=None,
offset=10000,
test=None,
extend_distance=1000,
remove_inconsistent_names=False,
resolve_blocks=False)
(args) = E.start(parser, add_pipe_options=True)
contigs = None
chr_map = None
# Why provide full indexed genome, when a tsv of contig sizes would do?
if args.genome_file:
genome_fasta = IndexedFasta.IndexedFasta(args.genome_file)
contigs = genome_fasta.getContigSizes()
if args.bam_file:
samfile = pysam.AlignmentFile(args.bam_file)
contigs = dict(list(zip(samfile.references, samfile.lengths)))
if args.rename_chr_file:
chr_map = {}
with open(args.rename_chr_file, 'r') as filein:
reader = csv.reader(filein, delimiter='\t')
for row in reader:
if len(row) != 2:
raise ValueError(
"Mapping table must have exactly two columns")
chr_map[row[0]] = row[1]
if not len(chr_map.keys()) > 0:
raise ValueError("Empty mapping dictionnary")
processor = Bed.iterator(args.stdin)
for method in args.methods:
if method == "filter-genome":
if not contigs:
raise ValueError("please supply contig sizes")
processor = filterGenome(processor, contigs)
elif method == "sanitize-genome":
if not contigs:
raise ValueError("please supply contig sizes")
processor = sanitizeGenome(processor, contigs)
elif method == "merge":
processor = merge(
processor,
args.merge_distance,
by_name=args.merge_by_name,
min_intervals=args.merge_min_intervals,
remove_inconsistent=args.remove_inconsistent_names,
resolve_blocks=args.resolve_blocks,
stranded=args.stranded)
elif method == "bins":
if args.bin_edges:
bin_edges = list(map(float, args.bin_edges.split(",")))
# IMS: check bin edges are valid
if not (len(bin_edges) == args.num_bins + 1):
raise ValueError(
"Number of bin edge must be one more than "
"number of bins")
else:
bin_edges = None
processor, bin_edges = Bed.binIntervals(processor,
num_bins=args.num_bins,
method=args.binning_method,
bin_edges=bin_edges)
E.info("# split bed: bin_edges=%s" % (str(bin_edges)))
elif method == "block":
processor = Bed.blocked_iterator(processor)
elif method == "shift":
# IMS: test that contig sizes are availible
if not contigs:
raise ValueError("please supply genome file")
processor = shiftIntervals(processor, contigs, offset=args.offset)
# IMS: new method: extend intervals by set amount
elif method == "extend":
if not contigs:
raise ValueError("please supply genome file")
processor = extendInterval(processor, contigs, args.offset)
elif method == "filter-names":
if not args.names:
raise ValueError("please supply list of names to filter")
names = [name.strip() for name in open(args.names)]
processor = filterNames(processor, names)
elif method == "rename-chr":
if not chr_map:
raise ValueError("please supply mapping file")
processor = renameChromosomes(processor, chr_map)
noutput = 0
for bed in processor:
args.stdout.write(str(bed) + "\n")
noutput += 1
E.info("noutput=%i" % (noutput))
E.stop()
def main(argv=None):
"""script main.
parses command line options in sys.argv, unless *argv* is given.
"""
if argv is None:
argv = sys.argv
parser = E.OptionParser(
version="%prog version: $Id: gff2psl.py 2781 2009-09-10 11:33:14Z andreas $", usage=globals()["__doc__"])
parser.add_option("--is-gtf", dest="is_gtf", action="store_true",
help="input is gtf.")
parser.add_option("--no-header", dest="with_header", action="store_false",
help="do not output BLAT header [default=%default].")
parser.add_option("-g", "--genome-file", dest="genome_file", type="string",
help="filename with genome.")
parser.add_option("--queries-tsv-file", dest="input_filename_queries", type="string",
help="fasta filename with queries [default=%default].")
parser.add_option("--allow-duplicates", dest="allow_duplicates", action="store_true",
help="""permit duplicate entries. Adjacent exons of a transcript will still be merged [default=%default].""" )
parser.set_defaults(is_gtf=False,
genome_file=None,
with_header=True,
allow_duplicates=False,
test=None)
(options, args) = E.start(parser, add_pipe_options=True)
if options.genome_file:
genome_fasta = IndexedFasta.IndexedFasta(options.genome_file)
else:
genome_fasta = None
if options.input_filename_queries:
queries_fasta = IndexedFasta.IndexedFasta(
options.input_filename_queries)
else:
queries_fasta = None
ninput, noutput, nskipped = 0, 0, 0
if options.is_gtf:
iterator = GTF.transcript_iterator(GTF.iterator_filtered(GTF.iterator(sys.stdin),
feature="exon"),
strict=not options.allow_duplicates)
else:
iterator = GTF.joined_iterator(GTF.iterator(sys.stdin))
if options.with_header:
options.stdout.write(Blat.Match().getHeader() + "\n")
for gffs in iterator:
if options.test and ninput >= options.test:
break
ninput += 1
result = alignlib_lite.py_makeAlignmentBlocks()
xstart = 0
intervals = Intervals.combine([(gff.start, gff.end) for gff in gffs])
for start, end in intervals:
xend = xstart + end - start
result.addDiagonal(xstart, xend,
start - xstart)
xstart = xend
entry = Blat.Match()
entry.mQueryId = gffs[0].transcript_id
entry.mSbjctId = gffs[0].contig
entry.strand = gffs[0].strand
if genome_fasta:
if entry.mSbjctId in genome_fasta:
entry.mSbjctLength = genome_fasta.getLength(entry.mSbjctId)
else:
entry.mSbjctLength = result.getColTo()
if queries_fasta:
if entry.mQueryId in queries_fasta:
entry.mQueryLength = queries_fasta.getLength(entry.mQueryId)
else:
entry.mQueryLength = result.getRowTo()
entry.fromMap(result)
options.stdout.write(str(entry) + "\n")
noutput += 1
E.info("ninput=%i, noutput=%i, nskipped=%i" % (ninput, noutput, nskipped))
E.stop()
def main(argv=None):
parser = E.ArgumentParser(description=__doc__)
parser.add_argument("-g",
"--genome-file",
dest="genome_file",
type=str,
help="filename with genome.")
parser.add_argument("-q",
"--quality-file",
dest="quality_file",
type=str,
help="filename with genomic base quality "
"information.")
parser.add_argument("-b",
"--bam-file",
dest="bam_files",
type=str,
metavar="bam",
help="filename with read mapping information. "
"Multiple files can be submitted in a "
"comma-separated list.")
parser.add_argument("-i",
"--bigwig-file",
dest="bigwig_file",
type=str,
metavar="bigwig",
help="filename with bigwig information ")
parser.add_argument("-f",
"--gff-file",
dest="filename_gff",
type=str,
action="append",
metavar='bed',
help="filename with extra gff files. The order "
"is important.")
parser.add_argument("--filename-format",
dest="filename_format",
type=str,
choices=("bed", "gff", "gtf"),
help="format of secondary stream.")
parser.add_argument("--restrict-source",
dest="gff_sources",
type=str,
action="append",
help="restrict input to this 'source' in extra "
"gff file (for counter: overlap).")
parser.add_argument("--restrict-feature",
dest="gff_features",
type=str,
action="append",
help="restrict input to this 'feature' in extra gff "
"file (for counter: overlap).")
parser.add_argument("-r",
"--reporter",
dest="reporter",
type=str,
choices=("genes", "transcripts"),
help="report results for 'genes' or 'transcripts' ")
parser.add_argument("-s",
"--section",
dest="sections",
type=str,
action="append",
choices=("exons", "introns"),
help="select range on which counters will operate ")
parser.add_argument(
"-c",
"--counter",
dest="counters",
type=str,
action="append",
choices=("bigwig-counts", "binding-pattern", "classifier",
"classifier-rnaseq", "classifier-rnaseq-splicing",
"classifier-polii", "composition-na", "composition-cpg",
"coverage", "distance", "distance-genes", "distance-tss",
"length", 'neighbours', "overlap", "overlap-stranded",
"overlap-transcripts", "overrun", "position", "proximity",
"proximity-exclusive", "proximity-lengthmatched", "quality",
"read-coverage", "read-extension", "read-overlap",
"read-counts", "read-fullcounts", "readpair-counts",
"readpair-fullcounts", "splice", "splice-comparison",
"territories"),
help="select counters to apply to input ")
parser.add_argument("--add-gtf-source",
dest="add_gtf_source",
action="store_true",
help="add gtf field of source to output ")
parser.add_argument("--proximal-distance",
dest="proximal_distance",
type=int,
help="distance to be considered proximal to "
"an interval.")
parser.add_argument("--multi-mapping-method",
dest="multi_mapping",
type=str,
choices=('all', 'ignore', 'weight'),
help="how to treat multi-mapping reads in "
"bam-files. Requires "
"the NH flag to be set by the mapper ")
parser.add_argument("--use-barcodes",
dest="use_barcodes",
action="store_true",
help="Use barcodes to count unique umi's. "
"UMI's are specified in the read identifier "
"as the last field, where fields are separated "
"by underscores, e.g. "
"@READ:ILLUMINA:STUFF_NAMINGSTUFF_UMI. "
"When true, unique counts are returned. "
"Currently only compatible with count-reads")
parser.add_argument("--sample-probability",
dest="sample_probability",
type=float,
help="Specify the probability of whether any"
"given read or read pair in a file bam is counted"
"Currently only compatible with count-reads")
parser.add_argument("--column-prefix",
dest="prefixes",
type=str,
action="append",
help="add prefix to column headers - prefixes "
"are used in the same order as the counters ")
parser.add_argument("--library-type",
dest="library_type",
type=str,
choices=("unstranded", "firststrand", "secondstrand",
"fr-unstranded", "fr-firststrand",
"fr-secondstrand"),
help="library type of reads in bam file. ")
parser.add_argument("--min-mapping-quality",
dest="minimum_mapping_quality",
type=float,
help="minimum mapping quality. Reads with a quality "
"score of less will be ignored. ")
parser.set_defaults(genome_file=None,
reporter="genes",
with_values=True,
sections=[],
counters=[],
filename_gff=[],
filename_format=None,
gff_features=[],
gff_sources=[],
add_gtf_source=False,
proximal_distance=10000,
bam_files=None,
multi_mapping='all',
library_type='fr-unstranded',
prefixes=[],
minimum_mapping_quality=0,
use_barcodes=False,
sample_probability=1.0)
if not argv:
argv = sys.argv
(args) = E.start(parser, add_output_options=True, argv=argv)
if args.prefixes:
if len(args.prefixes) != len(args.counters):
raise ValueError("if any prefix is given, the number of prefixes "
"must be the same as the number of counters")
# get files
if args.genome_file:
fasta = IndexedFasta.IndexedFasta(args.genome_file)
else:
fasta = None
if args.quality_file:
quality = IndexedFasta.IndexedFasta(args.quality_file)
quality.setTranslator(IndexedFasta.TranslatorBytes())
else:
quality = None
if args.bam_files:
bam_files = []
for bamfile in args.bam_files.split(","):
bam_files.append(pysam.AlignmentFile(bamfile, "rb"))
else:
bam_files = None
if args.bigwig_file:
bigwig_file = pyBigWig.open(args.bigwig_file)
else:
bigwig_file = None
counters = []
if not args.sections:
E.info("counters will use the default section (exons)")
args.sections.append(None)
if not args.gff_sources:
args.gff_sources.append(None)
if not args.gff_features:
args.gff_features.append(None)
cc = E.Counter()
for n, c in enumerate(args.counters):
if args.prefixes:
prefix = args.prefixes[n]
else:
prefix = None
if c == "position":
for section in args.sections:
counters.append(
GeneModelAnalysis.CounterPosition(section=section,
options=args,
prefix=prefix))
elif c == "length":
for section in args.sections:
counters.append(
GeneModelAnalysis.CounterLengths(section=section,
options=args,
prefix=prefix))
elif c == "splice":
if fasta is None:
raise ValueError('splice requires a genomic sequence')
counters.append(
GeneModelAnalysis.CounterSpliceSites(fasta=fasta,
prefix=prefix))
elif c == "quality":
if fasta is None:
raise ValueError('quality requires a quality score sequence')
counters.append(
GeneModelAnalysis.CounterQuality(fasta=quality, prefix=prefix))
elif c == "overrun":
counters.append(
GeneModelAnalysis.CounterOverrun(
filename_gff=args.filename_gff,
options=args,
prefix=prefix))
elif c == "read-coverage":
counters.append(
GeneModelAnalysis.CounterReadCoverage(bam_files,
options=args,
prefix=prefix))
elif c == "read-extension":
counters.append(
GeneModelAnalysis.CounterReadExtension(
bam_files,
filename_gff=args.filename_gff,
options=args,
prefix=prefix))
elif c == "read-overlap":
counters.append(
GeneModelAnalysis.CounterReadOverlap(
bam_files,
multi_mapping=args.multi_mapping,
minimum_mapping_quality=args.minimum_mapping_quality,
options=args,
prefix=prefix))
elif c == "read-counts":
counters.append(
GeneModelAnalysis.CounterReadCounts(
bam_files,
multi_mapping=args.multi_mapping,
use_barcodes=args.use_barcodes,
sample_probability=args.sample_probability,
minimum_mapping_quality=args.minimum_mapping_quality,
options=args,
prefix=prefix))
elif c == "read-fullcounts":
counters.append(
GeneModelAnalysis.CounterReadCountsFull(
bam_files,
multi_mapping=args.multi_mapping,
sample_probability=args.sample_probability,
minimum_mapping_quality=args.minimum_mapping_quality,
options=args,
prefix=prefix))
elif c == "readpair-counts":
counters.append(
GeneModelAnalysis.CounterReadPairCounts(
bam_files,
multi_mapping=args.multi_mapping,
sample_probability=args.sample_probability,
library_type=args.library_type,
minimum_mapping_quality=args.minimum_mapping_quality,
options=args,
prefix=prefix))
elif c == "readpair-fullcounts":
counters.append(
GeneModelAnalysis.CounterReadPairCountsFull(
bam_files,
multi_mapping=args.multi_mapping,
sample_probability=args.sample_probability,
minimum_mapping_quality=args.minimum_mapping_quality,
options=args,
prefix=prefix))
elif c == "bigwig-counts":
counters.append(
GeneModelAnalysis.CounterBigwigCounts(bigwig_file,
options=args,
prefix=prefix))
elif c == "splice-comparison":
if fasta is None:
raise ValueError('splice-comparison requires a genomic '
'sequence')
counters.append(
GeneModelAnalysis.CounterSpliceSiteComparison(
fasta=fasta,
filename_gff=args.filename_gff,
feature=None,
source=None,
options=args,
prefix=prefix))
elif c == "composition-na":
if fasta is None:
raise ValueError('composition-na requires a genomic sequence')
for section in args.sections:
counters.append(
GeneModelAnalysis.CounterCompositionNucleotides(
fasta=fasta,
section=section,
options=args,
prefix=prefix))
elif c == "composition-cpg":
if fasta is None:
raise ValueError('composition-cpg requires a genomic sequence')
for section in args.sections:
counters.append(
GeneModelAnalysis.CounterCompositionCpG(fasta=fasta,
section=section,
options=args,
prefix=prefix))
elif c in ("overlap", "overlap-stranded", "overlap-transcripts",
"proximity", "proximity-exclusive",
"proximity-lengthmatched", "neighbours", "territories",
"distance", "distance-genes", "distance-tss",
"binding-pattern", "coverage"):
if c == "overlap":
template = GeneModelAnalysis.CounterOverlap
if c == "overlap-stranded":
template = GeneModelAnalysis.CounterOverlapStranded
elif c == "overlap-transcripts":
template = GeneModelAnalysis.CounterOverlapTranscripts
elif c == "proximity":
template = GeneModelAnalysis.CounterProximity
elif c == "neighbours":
template = GeneModelAnalysis.CounterNeighbours
elif c == "proximity-exclusive":
template = GeneModelAnalysis.CounterProximityExclusive
elif c == "proximity-lengthmatched":
template = GeneModelAnalysis.CounterProximityLengthMatched
elif c == "territories":
template = GeneModelAnalysis.CounterTerritories
elif c == "distance":
template = GeneModelAnalysis.CounterDistance
elif c == "distance-genes":
template = GeneModelAnalysis.CounterDistanceGenes
elif c == "distance-tss":
template = GeneModelAnalysis.CounterDistanceTranscriptionStartSites
elif c == "coverage":
template = GeneModelAnalysis.CounterCoverage
elif c == "binding-pattern":
template = GeneModelAnalysis.CounterBindingPattern
for section in args.sections:
for source in args.gff_sources:
for feature in args.gff_features:
counters.append(
template(filename_gff=args.filename_gff,
feature=feature,
source=source,
fasta=fasta,
section=section,
options=args,
prefix=prefix))
elif c == "classifier":
counters.append(
GeneModelAnalysis.Classifier(filename_gff=args.filename_gff,
fasta=fasta,
options=args,
prefix=prefix))
elif c == "classifier-rnaseq":
counters.append(
GeneModelAnalysis.ClassifierRNASeq(
filename_gff=args.filename_gff,
fasta=fasta,
options=args,
prefix=prefix))
elif c == "classifier-rnaseq-splicing":
counters.append(
GeneModelAnalysis.ClassifierRNASeqSplicing(
filename_gff=args.filename_gff,
fasta=fasta,
options=args,
prefix=prefix))
elif c == "classifier-polii":
counters.append(
GeneModelAnalysis.ClassifierPolII(
filename_gff=args.filename_gff,
feature=None,
source=None,
fasta=fasta,
options=args,
prefix=prefix))
elif c == "binding-pattern":
counters.append(
GeneModelAnalysis.CounterBindingPattern(
filename_gff=args.filename_gff,
feature=None,
source=None,
fasta=fasta,
options=args,
prefix=prefix))
if args.reporter == "genes":
iterator = GTF.flat_gene_iterator
header = ["gene_id"]
fheader = lambda x: [x[0].gene_id]
elif args.reporter == "transcripts":
iterator = GTF.transcript_iterator
header = ["transcript_id"]
fheader = lambda x: [x[0].transcript_id]
if args.add_gtf_source:
header.append("source")
ffields = lambda x: [x[0].source]
else:
ffields = lambda x: []
args.stdout.write("\t".join(header + [x.getHeader()
for x in counters]) + "\n")
for gffs in iterator(GTF.iterator(args.stdin)):
cc.input += 1
for counter in counters:
counter.update(gffs)
skip = len([x for x in counters if x.skip]) == len(counters)
if skip:
cc.skipped += 1
continue
args.stdout.write("\t".join(
fheader(gffs) + ffields(gffs) +
[str(counter) for counter in counters]) + "\n")
cc.output += 1
E.info("%s" % str(cc))
for counter in counters:
E.info("%s\t%s" % (repr(counter), str(counter.counter)))
E.stop()
def main(argv=None):
if argv is None:
argv = sys.argv
parser = E.ArgumentParser(description=__doc__)
parser.add_argument("-g",
"--genome-file",
dest="genome_file",
type=str,
help="filename with genome.")
parser.add_argument(
"-b",
"--bam-file",
dest="bam_files",
type=str,
help="filename with read mapping information. Multiple files can be "
"submitted in a comma-separated list.")
parser.add_argument(
"--control-bam-file",
dest="control_bam_files",
type=str,
help="filename with read mapping information for input/control. "
"Multiple files can be submitted in a comma-separated list ")
parser.add_argument("--filename-format",
dest="filename_format",
type=str,
choices=("bed", "gff", "gtf"),
help="format of secondary stream.")
parser.add_argument("-c",
"--counter",
dest="counters",
type=str,
action="append",
choices=("length", "overlap", "peaks",
"composition-na", "composition-cpg",
"classifier-chipseq", "motif"),
help="select counters to apply.")
parser.add_argument("--motif-sequence",
dest="motif_sequence",
type=str,
help="specify a sequence to search for")
parser.add_argument(
"-o",
"--offset",
dest="offsets",
type=int,
action="append",
help="tag offsets for tag counting - supply as many as there "
"are bam-files")
parser.add_argument(
"--control-offset",
dest="control_offsets",
type=int,
action="append",
help="control tag offsets for tag counting - supply as many as "
"there are bam-files.")
parser.add_argument(
"-a",
"--output-all-fields",
dest="all_fields",
action="store_true",
help="output all fields in original bed file, by default only "
"the first 4 are output.")
parser.add_argument(
"--output-bed-headers",
dest="bed_headers",
type=str,
help="supply ',' separated list of headers for bed component ")
parser.add_argument(
"-f",
"--gff-file",
dest="filename_gff",
type=str,
action="append",
metavar='bed',
help="filename with extra gff files. The order is important")
parser.add_argument(
"--has-header",
dest="has_header",
action="store_true",
help="bed file with headers. Headers and first columns are "
"preserved ")
parser.set_defaults(genome_file=None,
counters=[],
bam_files=None,
offsets=[],
control_bam_files=None,
control_offsets=[],
all_fields=False,
filename_format=None,
bed_headers=None,
filename_gff=[],
has_header=False,
motif_sequence=None)
(args) = E.start(parser)
if args.bed_headers is not None:
bed_headers = [x.strip() for x in args.bed_headers.split(",")]
if len(bed_headers) < 3:
raise ValueError("a bed file needs at least three columns")
else:
bed_headers = None
if args.has_header:
while 1:
line = args.stdin.readline()
if not line:
E.warn("empty bed file with no header")
E.stop()
return
if not line.startswith("#"):
break
bed_headers = line[:-1].split("\t")
if "motif" in args.counters and not args.motif_sequence:
raise ValueError("if using motif must specify a motif-sequence")
# get files
if args.genome_file:
fasta = IndexedFasta.IndexedFasta(args.genome_file)
else:
fasta = None
if args.bam_files:
bam_files = []
for bamfile in args.bam_files.split(","):
bam_files.append(pysam.AlignmentFile(bamfile, "rb"))
else:
bam_files = None
if args.control_bam_files:
control_bam_files = []
for bamfile in args.control_bam_files.split(","):
control_bam_files.append(pysam.AlignmentFile(bamfile, "rb"))
else:
control_bam_files = None
counters = []
for c in args.counters:
if c == "length":
counters.append(CounterLength(fasta=fasta, options=args))
elif c == "overlap":
counters.append(
CounterOverlap(filename=args.filename_gff[0],
fasta=fasta,
options=args))
del args.filename_gff[0]
elif c == "peaks":
counters.append(
CounterPeaks(bam_files,
args.offsets,
control_bam_files,
args.control_offsets,
options=args))
elif c == "composition-na":
counters.append(
CounterCompositionNucleotides(fasta=fasta, options=args))
elif c == "composition-cpg":
counters.append(CounterCompositionCpG(fasta=fasta, options=args))
elif c == "classifier-chipseq":
counters.append(
ClassifierChIPSeq(filename_gff=args.filename_gff,
fasta=fasta,
options=args,
prefix=None))
del args.filename_gff[0]
elif c == "motif":
counters.append(
CounterMotif(fasta=fasta, motif=args.motif_sequence))
extra_fields = None
for bed in Bed.iterator(args.stdin):
if extra_fields is None:
# output explicitely given headers
if bed_headers:
if len(bed_headers) > bed.columns:
raise ValueError(
"insufficient columns (%i, expected %i) in %s" %
(bed.columns, len(bed_headers), str(bed)))
else:
bed_headers = Bed.Headers[:bed.columns]
args.stdout.write("\t".join(bed_headers))
args.stdout.write("\t" +
"\t".join([x.getHeader()
for x in counters]) + "\n")
extra_fields = list(range(len(bed_headers) - 3))
for counter in counters:
counter.update(bed)
if args.all_fields:
args.stdout.write(str(bed))
else:
args.stdout.write("\t".join(
[bed.contig, str(bed.start),
str(bed.end)] + [bed.fields[x] for x in extra_fields]))
for counter in counters:
args.stdout.write("\t%s" % str(counter))
args.stdout.write("\n")
E.stop()
def main(argv=None):
"""script main.
parses command line options in sys.argv, unless *argv* is given.
"""
if argv is None:
argv = sys.argv
parser = E.OptionParser(version="%prog version: "
"$Id: gff2coverage.py 2781 2009-09-10 11:33:14Z "
"andreas $",
usage=globals()["__doc__"])
parser.add_option("-g",
"--genome-file",
dest="genome_file",
type="string",
help="filename with genome [default=%default]")
parser.add_option("-f",
"--features",
dest="features",
type="string",
action="append",
help="features to collect "
"[default=%default]")
parser.add_option("-w",
"--window-size",
dest="window_size",
type="int",
help="window size in bp for histogram computation. "
"Determines the bin size. "
"[default=%default]")
parser.add_option("-b",
"--num-bins",
dest="num_bins",
type="int",
help="number of bins for histogram computation "
"if window size is not given. "
"[default=%default]")
parser.add_option("-m",
"--method",
dest="method",
type="choice",
choices=(
"genomic",
"histogram",
),
help="methods to apply. "
"[default=%default]")
parser.set_defaults(
genome_file=None,
window_size=None,
num_bins=1000,
value_format="%6.4f",
features=[],
method="genomic",
)
(options, args) = E.start(parser, add_output_options=True)
if options.genome_file:
fasta = IndexedFasta.IndexedFasta(options.genome_file)
else:
fasta = None
if options.method == "histogram":
gff = GTF.readFromFile(options.stdin)
gff.sort(key=lambda x: (x.contig, x.start))
chunk = []
last_contig = None
for entry in gff:
if last_contig != entry.contig:
processChunk(last_contig, chunk, options, fasta)
last_contig = entry.contig
chunk = []
chunk.append(entry)
processChunk(last_contig, chunk, options, fasta)
elif options.method == "genomic":
intervals = collections.defaultdict(int)
bases = collections.defaultdict(int)
total = 0
for entry in GTF.iterator(options.stdin):
intervals[(entry.contig, entry.source, entry.feature)] += 1
bases[(entry.contig, entry.source,
entry.feature)] += entry.end - entry.start
total += entry.end - entry.start
options.stdout.write("contig\tsource\tfeature\tintervals\tbases")
if fasta:
options.stdout.write(
"\tpercent_coverage\ttotal_percent_coverage\n")
else:
options.stdout.write("\n")
total_genome_size = sum(
fasta.getContigSizes(with_synonyms=False).values())
for key in sorted(intervals.keys()):
nbases = bases[key]
nintervals = intervals[key]
contig, source, feature = key
options.stdout.write("\t".join(
("\t".join(key), str(nintervals), str(nbases))))
if fasta:
options.stdout.write(
"\t%f" % (100.0 * float(nbases) / fasta.getLength(contig)))
options.stdout.write(
"\t%f\n" % (100.0 * float(nbases) / total_genome_size))
else:
options.stdout.write("\n")
E.stop()
def writeSequencesForIntervals(track,
filename,
dbhandle,
full=False,
halfwidth=None,
maxsize=None,
proportion=None,
masker=[],
offset=0,
shuffled=False,
num_sequences=None,
min_sequences=None,
order="peakval",
shift=None):
'''build a sequence set for motif discovery. Intervals are taken from
the table <track>_intervals in the database *dbhandle* and save to
*filename* in :term:`fasta` format.
If num_shuffles is set, shuffled copies are created as well with
the shuffled number appended to the filename.
The sequences are masked before shuffling (is this appropriate?)
If *full* is set, the whole intervals will be output, otherwise
only the region around the peak given by *halfwidth*
If *maxsize* is set, the output is truncated at *maxsize* characters
in order to create jobs that take too long.
If proportion is set, only the top *proportion* intervals are output
(sorted by peakval).
If *num_sequences* is set, the first *num_sequences* will be used.
*masker* can be a combination of
* dust, dustmasker: apply dustmasker
* softmask: mask softmasked genomic regions
*order* is the order by which peaks should be sorted. Possible
values are 'peakval' (peak value, descending order), 'score' (peak
score, descending order)
If *shift* is set, intervals will be shifted. ``leftright``
creates two intervals on the left and right of the actual
interval. The intervals will be centered around the mid-point and
truncated the same way as the main intervals.
'''
fasta = IndexedFasta.IndexedFasta(
os.path.join(P.get_params()["genome_dir"],
P.get_params()["genome"]))
if order == "peakval":
orderby = " ORDER BY peakval DESC"
elif order == "max":
orderby = " ORDER BY score DESC"
else:
raise ValueError(
"Unknown value passed as order parameter, check your ini file")
tablename = "%s_intervals" % P.tablequote(track)
statement = '''SELECT contig, start, end, interval_id, peakcenter
FROM %(tablename)s
''' % locals() + orderby
cc = dbhandle.execute(statement)
data = cc.fetchall()
cc.close()
if proportion:
cutoff = int(len(data) * proportion) + 1
if min_sequences:
cutoff = max(cutoff, min_sequences)
elif num_sequences:
cutoff = num_sequences
else:
cutoff = len(data)
L.info(
"writeSequencesForIntervals %s: using at most %i sequences for pattern finding"
% (track, cutoff))
data = data[:cutoff]
L.info("writeSequencesForIntervals %s: masker=%s" % (track, str(masker)))
fasta = IndexedFasta.IndexedFasta(
os.path.join(P.get_params()["genome_dir"],
P.get_params()["genome"]))
# modify the ranges
if shift:
if shift == "leftright":
new_data = [(contig, start - (end - start), start,
str(interval_id) + "_left", peakcenter)
for contig, start, end, interval_id, peakcenter in data
]
new_data.extend([
(contig, end, end + (end - start), str(interval_id) + "_right",
peakcenter)
for contig, start, end, interval_id, peakcenter in data
])
data = new_data
if halfwidth:
# center around peakcenter, add halfwidth on either side
data = [(contig, peakcenter - halfwidth, peakcenter + halfwidth,
interval_id)
for contig, start, end, interval_id, peakcenter in data]
else:
# remove peakcenter
data = [(contig, start, end, interval_id)
for contig, start, end, interval_id, peakcenter in data]
# get the sequences - cut at number of nucleotides
sequences = []
current_size, nseq = 0, 0
new_data = []
for contig, start, end, interval_id in data:
lcontig = fasta.getLength(contig)
start, end = max(0, start + offset), min(end + offset, lcontig)
if start >= end:
L.info(
"writeSequencesForIntervals %s: sequence %s is empty: start=%i, end=%i, offset=%i - ignored"
% (track, id, start, end, offset))
continue
seq = fasta.getSequence(contig, "+", start, end)
sequences.append(seq)
new_data.append((start, end, interval_id, contig))
current_size += len(seq)
if maxsize and current_size >= maxsize:
L.info(
"writeSequencesForIntervals %s: maximum size (%i) reached - only %i sequences output (%i ignored)"
% (track, maxsize, nseq, len(data) - nseq))
break
nseq += 1
data = new_data
if shuffled:
# note that shuffling is done on the unmasked sequences
# Otherwise N's would be interspersed with real sequence
# messing up motif finding unfairly. Instead, masking is
# done on the shuffled sequence.
sequences = [list(x) for x in sequences]
for sequence in sequences:
random.shuffle(sequence)
sequences = maskSequences(["".join(x) for x in sequences], masker)
c = E.Counter()
outs = iotools.open_file(filename, "w")
for masker in masker:
if masker not in ("unmasked", "none", None):
sequences = maskSequences(sequences, masker)
for sequence, d in zip(sequences, data):
c.input += 1
if len(sequence) == 0:
c.empty += 1
continue
start, end, id, contig = d
id = "%s_%s %s:%i-%i" % (track, str(id), contig, start, end)
outs.write(">%s\n%s\n" % (id, sequence))
c.output += 1
outs.close()
E.info("%s" % c)
return c.output
def main(argv=None):
"""script main.
parses command line options in sys.argv, unless *argv* is given.
"""
if not argv:
argv = sys.argv
# setup command line parser
parser = E.ArgumentParser(description=__doc__)
parser.add_argument("--version", action='version', version="1.0")
parser.add_argument("-g",
"--genome-file",
dest="genome_file",
type=str,
help="filename with genome")
parser.add_argument(
"-i",
"--ignore-missing",
dest="ignore_missing",
action="store_true",
help="Ignore transcripts on contigs that are not in the genome-file.")
parser.add_argument(
"--min-intron-length",
dest="min_intron_length",
type=int,
help=
"minimum intron length. If the distance between two consecutive exons is smaller, the region will be marked 'unknown"
)
parser.add_argument("-m",
"--method",
dest="method",
type=str,
choices=["full"],
help="method to apply")
parser.set_defaults(
genome_file=None,
flank=1000,
max_frameshift_length=4,
min_intron_length=30,
ignore_missing=False,
restrict_source=None,
method="full",
report_step=1000,
)
# add common options (-h/--help, ...) and parse command line
(args) = E.start(parser, argv=argv, add_output_options=True)
if not args.genome_file:
raise ValueError("an indexed genome is required.")
fasta = IndexedFasta.IndexedFasta(args.genome_file)
iterator = GTF.transcript_iterator(GTF.iterator(args.stdin))
annotateGenome(iterator, fasta, args)
# write footer and output benchmark information.
E.stop()
def main(argv=None):
"""script main.
parses command line options in sys.argv, unless *argv* is given.
"""
if argv is None:
argv = sys.argv
parser = E.ArgumentParser(description=__doc__)
parser.add_argument("-g",
"--genome-file",
dest="genome_file",
type=str,
help="filename with genome.")
parser.add_argument("-f",
"--features",
dest="features",
type=str,
help="feature to collect.")
parser.add_argument("-i",
"--files",
dest="files",
action="append",
help="use multiple annotations.")
parser.add_argument(
"-a",
"--annotations",
dest="annotations",
type=str,
help=
"aggregate name for annotations if only single file is provided from STDIN."
)
parser.add_argument("--map-tsv-file",
dest="input_filename_map",
type=str,
help="filename with a map of gene_ids to categories.")
parser.add_argument("-l",
"--max-length",
dest="max_length",
type=str,
help="maximum segment length.")
parser.add_argument("-m",
"--merge-overlapping",
dest="merge",
action="store_true",
help="merge overlapping bed segments.")
parser.add_argument("-s",
"--section",
dest="section",
type=str,
choices=("segments", "annotations", "workspace"),
help="annotator section.")
parser.add_argument(
"--subset",
dest="subsets",
type=str,
action="append",
help=
"add filenames to delimit subsets within the gff files. The syntax is filename.gff,label,filename.ids."
)
parser.set_defaults(
genome_file=None,
feature=None,
remove_random=True,
section="segments",
annotations="annotations",
max_length=100000,
files=[],
subsets=[],
input_filename_map=None,
merge=False,
)
(args, unknown) = E.start(parser, unknowns=True)
args.files += unknown
if len(args.files) == 0:
args.files.append("-")
args.files = list(
itertools.chain(*[re.split("[,; ]+", x) for x in args.files]))
if args.subsets:
subsets = collections.defaultdict(list)
for s in args.subsets:
filename_gff, label, filename_ids = s.split(",")
subsets[filename_gff].append((label, filename_ids))
args.subsets = subsets
if args.genome_file:
fasta = IndexedFasta.IndexedFasta(args.genome_file)
else:
fasta = None
if args.section == "segments":
prefix = "##Segs"
elif args.section == "annotations":
prefix = "##Id"
elif args.section == "workspace":
prefix = "##Work"
else:
raise ValueError("unknown section %s" % args.section)
if args.max_length:
max_length = args.max_length
else:
max_length = 0
ninput, ntracks, ncontigs, nsegments, ndiscarded = 0, 0, 0, 0, 0
if args.section in ("annotations"):
contigs = set()
it = itertools.groupby(Bed.iterator(args.stdin),
key=lambda x: x.track["name"])
map_track2segments = {}
for track, beds in it:
ntracks += 1
map_track2segments[track] = []
first_segment = nsegments
beds = list(beds)
if args.merge:
beds = Bed.merge(beds)
for bed in beds:
contig, start, end = bed.contig, bed.start, bed.end
if args.remove_random and "random" in contig:
continue
if max_length > 0 and end - start > max_length:
ndiscarded += 1
continue
contigs.add(contig)
map_track2segments[track].append(nsegments)
args.stdout.write("%s\t%i\t%s\t(%i,%i)\n" %
(prefix, nsegments, contig, start, end))
nsegments += 1
args.stdout.write("##Ann\t%s\t%s\n" % (track, "\t".join(
["%i" % x for x in range(first_segment, nsegments)])))
E.info("track %s: annotated with %i segments" %
(track, nsegments - first_segment))
ncontigs = len(contigs)
E.info(
"ninput=%i, ntracks=%i, ncontigs=%i, nsegments=%i, ndiscarded=%i" %
(ninput, ntracks, ncontigs, nsegments, ndiscarded))
E.stop()
def main(argv=None):
if argv is None:
argv = sys.argv
parser = E.OptionParser(version="%prog version: $Id$",
usage=globals()["__doc__"])
parser.add_option(
"-e",
"--extract",
dest="extract",
type="string",
help="extract region for testing purposes. Format is "
"contig:strand:from:to. "
"The default coordinates are 0-based "
"open/closed coordinates on both strands, but can be changed "
"by --input-format. "
"For example, 'chr1:+:10:12' will return "
"bases 11 and 12 on chr1. Elements from the end of the "
"string can be omitted. For example, 'chr1' will return "
"all of chromosome 'chr1'.")
input_format_choices = ("one-forward-open", "zero-both-open")
parser.add_option("-i",
"--input-format",
dest="input_format",
type="choice",
choices=input_format_choices,
help="coordinate format of input. Valid choices are "
"%s. See --extract. [default=%%default]." %
", ".join(input_format_choices))
parser.add_option(
"-s",
"--synonyms",
dest="synonyms",
type="string",
help="list of synonyms. This is a comma separated with list "
"of equivalence relations. For example, chrM=chrMT "
"means that chrMT will refer to chrM and either "
"can be used to retrieve a sequence "
"[default=%default]")
group = E.OptionGroup(parser, "Bencharking options")
group.add_option("-b",
"--benchmark",
dest="benchmark",
action="store_true",
help="benchmark time for read access "
"[default=%default].")
group.add_option("--benchmark-num-iterations",
dest="benchmark_num_iterations",
type="int",
help="number of iterations for benchmark "
"[default=%default].")
group.add_option("--benchmark-fragment-size",
dest="benchmark_fragment_size",
type="int",
help="benchmark: fragment size [default=%default].")
parser.add_option_group(group)
group = E.OptionGroup(parser, "Validation options")
group.add_option("--verify",
dest="verify",
type="string",
help="verify against other database [default=%default].")
group.add_option("--verify-iterations",
dest="verify_num_iterations",
type="int",
help="number of iterations for verification "
"[default=%default].")
parser.add_option_group(group)
file_format_choices = ("fasta", "auto", "fasta.gz", "tar", "tar.gz")
parser.add_option("--file-format",
dest="file_format",
type="choice",
choices=file_format_choices,
help="file format of input. Supply if data comes "
"from stdin "
"Valid choices are %s [default=%%default]." %
", ".join(file_format_choices))
parser.add_option("-a",
"--clean-sequence",
dest="clean_sequence",
action="store_true",
help="remove X/x from DNA sequences - they cause "
"errors in exonerate [default=%default].")
parser.add_option("--allow-duplicates",
dest="allow_duplicates",
action="store_true",
help="allow duplicate identifiers. Further occurances "
"of an identifier are suffixed by an '_%i' "
"[default=%default].")
parser.add_option("--regex-identifier",
dest="regex_identifier",
type="string",
help="regular expression for extracting the "
"identifier from fasta description line "
"[default=%default].")
parser.add_option("--force-output",
dest="force",
action="store_true",
help="force overwriting of existing files "
"[default=%default].")
translator_choices = ("solexa", "phred", "bytes", "range200")
parser.add_option("-t",
"--translator",
dest="translator",
type="choice",
choices=translator_choices,
help="translate numerical quality scores. "
"Valid choices are %s [default=%%default]." %
", ".join(translator_choices))
group = E.OptionGroup(parser, 'Compression options')
compression_choices = ("lzo", "zlib", "gzip", "dictzip", "bzip2", "debug")
group.add_option("-c",
"--compression",
dest="compression",
type="choice",
choices=compression_choices,
help="compress database, using specified compression "
"method. "
"Valid choices are %s, but depend on availability on the "
"system "
"[default=%%default]." % ", ".join(compression_choices))
group.add_option("--random-access-points",
dest="random_access_points",
type="int",
help="set random access points every # number "
"of nucleotides for block compression schemes "
"[default=%default].")
group.add_option(
"--compress-index",
dest="compress_index",
action="store_true",
help="compress index. The default is to use a plain-text, "
"human-readable index [default=%default].")
parser.add_option_group(group)
parser.set_defaults(extract=None,
input_format="zero-both-open",
benchmark_fragment_size=1000,
benchmark_num_iterations=1000000,
benchmark=False,
compression=None,
random_access_points=0,
synonyms=None,
verify=None,
verify_num_iterations=100000,
verify_fragment_size=100,
clean_sequence=False,
allow_duplicates=False,
regex_identifier=None,
compress_index=False,
file_format="auto",
force=False,
translator=None)
(options, args) = E.start(parser)
if options.synonyms:
synonyms = {}
for x in options.synonyms.split(","):
a, b = x.split("=")
a = a.strip()
b = b.strip()
if a not in synonyms:
synonyms[a] = []
synonyms[a].append(b)
else:
synonyms = None
if options.translator:
if options.translator == "phred":
options.translator = IndexedFasta.TranslatorPhred()
elif options.translator == "solexa":
options.translator = IndexedFasta.TranslatorSolexa()
elif options.translator == "bytes":
options.translator = IndexedFasta.TranslatorBytes()
elif options.translator == "range200":
options.translator = IndexedFasta.TranslatorRange200()
else:
raise ValueError("unknown translator %s" % options.translator)
if options.extract:
fasta = IndexedFasta.IndexedFasta(args[0])
fasta.setTranslator(options.translator)
converter = IndexedFasta.getConverter(options.input_format)
contig, strand, start, end = IndexedFasta.parseCoordinates(
options.extract)
sequence = fasta.getSequence(contig,
strand,
start,
end,
converter=converter)
options.stdout.write(">%s\n%s\n" % (options.extract, sequence))
elif options.benchmark:
import timeit
timer = timeit.Timer(
stmt="IndexedFasta.benchmarkRandomFragment(fasta=fasta, size=%i)" %
(options.benchmark_fragment_size),
setup="from cgat import IndexedFasta\n"
"fasta=IndexedFasta.IndexedFasta('%s')" % (args[0]))
t = timer.timeit(number=options.benchmark_num_iterations)
options.stdout.write("iter\tsize\ttime\n")
options.stdout.write("%i\t%i\t%i\n" %
(options.benchmark_num_iterations,
options.benchmark_fragment_size, t))
elif options.verify:
fasta1 = IndexedFasta.IndexedFasta(args[0])
fasta2 = IndexedFasta.IndexedFasta(options.verify)
nerrors1 = IndexedFasta.verify(fasta1,
fasta2,
options.verify_num_iterations,
options.verify_fragment_size,
stdout=options.stdout)
options.stdout.write("errors=%i\n" % (nerrors1))
nerrors2 = IndexedFasta.verify(fasta2,
fasta1,
options.verify_num_iterations,
options.verify_fragment_size,
stdout=options.stdout)
options.stdout.write("errors=%i\n" % (nerrors2))
elif options.compress_index:
fasta = IndexedFasta.IndexedFasta(args[0])
fasta.compressIndex()
else:
if options.loglevel >= 1:
options.stdlog.write("# creating database %s\n" % args[0])
options.stdlog.write("# indexing the following files: \n# %s\n" %
(" \n# ".join(args[1:])))
options.stdlog.flush()
if synonyms:
options.stdlog.write("# Applying the following synonyms:\n")
for k, v in list(synonyms.items()):
options.stdlog.write("# %s=%s\n" % (k, ",".join(v)))
options.stdlog.flush()
if len(args) < 2:
print(globals()["__doc__"])
sys.exit(1)
iterator = IndexedFasta.MultipleFastaIterator(
args[1:],
regex_identifier=options.regex_identifier,
format=options.file_format)
IndexedFasta.createDatabase(
args[0],
iterator,
synonyms=synonyms,
random_access_points=options.random_access_points,
compression=options.compression,
clean_sequence=options.clean_sequence,
allow_duplicates=options.allow_duplicates,
translator=options.translator,
force=options.force)
E.stop()
# coding: utf-8
# In[2]:
import sys
from cgat import Bed
from cgat import IndexedFasta
from cgatcore import iotools
from cgat import Genomics
# In[3]:
genome = IndexedFasta.IndexedFasta("/shared/sudlab1/General/mirror/genomes/plain/hg38.fasta")
# In[7]:
bedfile = Bed.iterator(iotools.open_file(sys.argv[1]))
splice_site_dict = dict()
outfile = iotools.open_file(sys.argv[2], "w")
for utron in bedfile:
ss5_sequence = genome.getSequence(utron.contig, "+", utron.start, utron.start+2)
ss3_sequence = genome.getSequence(utron.contig, "+", utron.end-2, utron.end)
if utron.strand == "+":
splice_site_dict[utron.name] = (ss5_sequence, ss3_sequence)
if ":" in utron.name:
def main(argv=sys.argv):
parser = E.ArgumentParser(description=__doc__)
parser.add_argument("-m",
"--method",
dest="methods",
type=str,
action="append",
choices=("threshold", "stddev-above-mean",
"multiple-of-mean"),
help="method to apply")
parser.add_argument("-g",
"--genome-file",
dest="genome_file",
type=str,
help="filename with genome.")
parser.add_argument("-t",
"--threshold",
dest="threshold",
type=float,
help="threshold to apply")
parser.add_argument("-i",
"--bigwig-file",
dest="bigwig_file",
type=str,
metavar="bigwig",
help="filename with bigwig information.")
parser.set_defaults(methods=[],
genome_file=None,
threshold=10,
max_distance=0)
(args) = E.start(parser, add_pipe_options=True)
if args.bigwig_file:
bigwig_file = pyBigWig.open(args.bigwig_file)
else:
bigwig_file = None
if args.genome_file:
genome_fasta = IndexedFasta.IndexedFasta(args.genome_file)
contigs = genome_fasta.getContigSizes()
for method in args.methods:
if method == "threshold":
if not contigs:
raise ValueError("please supply contig sizes")
if not bigwig_file:
raise NotImplementedError(
"threshold not implemented for wig files")
processor = applyThreshold(bigwig_file,
genome_fasta,
threshold=args.threshold,
max_distance=args.max_distance)
elif method == "stddev-above-mean":
if not contigs:
raise ValueError("please supply contig sizes")
if not bigwig_file:
raise NotImplementedError(
"threshold not implemented for wig files")
summary = getBigwigSummary(args.bigwig_file)
threshold = summary.mean + args.threshold * summary.std
E.info("applying threshold %f: mean=%f, std=%f" %
(threshold, summary.mean, summary.std))
processor = applyThreshold(bigwig_file,
genome_fasta,
threshold=threshold,
max_distance=args.max_distance)
elif method == "multiple-of-mean":
if not contigs:
raise ValueError("please supply contig sizes")
if not bigwig_file:
raise NotImplementedError(
"threshold not implemented for wig files")
summary = getBigwigSummary(args.bigwig_file)
threshold = summary.mean * args.threshold
E.info("applying threshold %f: mean=%f, std=%f" %
(threshold, summary.mean, summary.std))
processor = applyThreshold(bigwig_file,
genome_fasta,
threshold=threshold,
max_distance=args.max_distance)
outfile = args.stdout
outfile.write("".join(["%s\t%i\t%i\n" % x for x in processor]))
outfile.write("\n")
E.stop()
def main(argv=None):
"""script main.
parses command line options in sys.argv, unless *argv* is given.
"""
if argv is None:
argv = sys.argv
parser = E.OptionParser(version="%prog version: $Id$",
usage=globals()["__doc__"])
parser.add_option("--is-gtf",
dest="is_gtf",
action="store_true",
help="input is gtf instead of gff.")
parser.add_option("-g",
"--genome-file",
dest="genome_file",
type="string",
help="filename with genome [default=%default].")
parser.add_option("-m",
"--merge-adjacent",
dest="merge",
action="store_true",
help="merge adjacent intervals with the same attributes."
" [default=%default]")
parser.add_option("-e",
"--feature",
dest="feature",
type="string",
help="filter by a feature, for example 'exon', 'CDS'."
" If set to the empty string, all entries are output "
"[%default].")
parser.add_option("-f",
"--maskregions-bed-file",
dest="filename_masks",
type="string",
metavar="gff",
help="mask sequences with regions given in gff file "
"[%default].")
parser.add_option("--remove-masked-regions",
dest="remove_masked_regions",
action="store_true",
help="remove regions instead of masking [%default].")
parser.add_option("--min-interval-length",
dest="min_length",
type="int",
help="set minimum length for sequences output "
"[%default]")
parser.add_option("--max-length",
dest="max_length",
type="int",
help="set maximum length for sequences output "
"[%default]")
parser.add_option("--extend-at",
dest="extend_at",
type="choice",
choices=("none", "3", "5", "both", "3only", "5only"),
help="extend at no end, 3', 5' or both ends. If "
"3only or 5only are set, only the added sequence "
"is returned [default=%default]")
parser.add_option("--header-attributes",
dest="header_attr",
action="store_true",
help="add GFF entry attributes to the FASTA record"
" header section")
parser.add_option("--extend-by",
dest="extend_by",
type="int",
help="extend by # bases [default=%default]")
parser.add_option("--extend-with",
dest="extend_with",
type="string",
help="extend using base [default=%default]")
parser.add_option("--masker",
dest="masker",
type="choice",
choices=("dust", "dustmasker", "softmask", "none"),
help="apply masker [%default].")
parser.add_option("--fold-at",
dest="fold_at",
type="int",
help="fold sequence every n bases[%default].")
parser.add_option(
"--fasta-name-attribute",
dest="naming_attribute",
type="string",
help="use attribute to name fasta entry. Currently only compatable"
" with gff format [%default].")
parser.set_defaults(
is_gtf=False,
genome_file=None,
merge=False,
feature=None,
filename_masks=None,
remove_masked_regions=False,
min_length=0,
max_length=0,
extend_at=None,
extend_by=100,
extend_with=None,
masker=None,
fold_at=None,
naming_attribute=False,
header_attr=False,
)
(options, args) = E.start(parser)
if options.genome_file:
fasta = IndexedFasta.IndexedFasta(options.genome_file)
contigs = fasta.getContigSizes()
if options.is_gtf:
iterator = GTF.transcript_iterator(GTF.iterator(options.stdin))
else:
gffs = GTF.iterator(options.stdin)
if options.merge:
iterator = GTF.joined_iterator(gffs)
else:
iterator = GTF.chunk_iterator(gffs)
masks = None
if options.filename_masks:
masks = {}
with iotools.open_file(options.filename_masks, "r") as infile:
e = GTF.readAsIntervals(GTF.iterator(infile))
# convert intervals to intersectors
for contig in list(e.keys()):
intersector = quicksect.IntervalTree()
for start, end in e[contig]:
intersector.add(start, end)
masks[contig] = intersector
ninput, noutput, nmasked, nskipped_masked = 0, 0, 0, 0
nskipped_length = 0
nskipped_noexons = 0
feature = options.feature
# iterator is a list containing groups (lists) of features.
# Each group of features have in common the same transcript ID, in case of
# GTF files.
for ichunk in iterator:
ninput += 1
if feature:
chunk = [x for x in ichunk if x.feature == feature]
else:
chunk = ichunk
if len(chunk) == 0:
nskipped_noexons += 1
E.info("no features in entry from "
"%s:%i..%i - %s" % (ichunk[0].contig, ichunk[0].start,
ichunk[0].end, str(ichunk[0])))
continue
contig, strand = chunk[0].contig, chunk[0].strand
if options.is_gtf:
name = chunk[0].transcript_id
else:
if options.naming_attribute:
attr_dict = {
x.split("=")[0]: x.split("=")[1]
for x in chunk[0].attributes.split(";")
}
name = attr_dict[options.naming_attribute]
else:
name = str(chunk[0].attributes)
lcontig = contigs[contig]
positive = Genomics.IsPositiveStrand(strand)
intervals = [(x.start, x.end) for x in chunk]
intervals.sort()
if masks:
if contig in masks:
masked_regions = []
for start, end in intervals:
masked_regions += [(x.start, x.end)
for x in masks[contig].find(
quicksect.Interval(start, end))]
masked_regions = Intervals.combine(masked_regions)
if len(masked_regions):
nmasked += 1
if options.remove_masked_regions:
intervals = Intervals.truncate(intervals, masked_regions)
else:
raise NotImplementedError("unimplemented")
if len(intervals) == 0:
nskipped_masked += 1
if options.loglevel >= 1:
options.stdlog.write(
"# skipped because fully masked: "
"%s: regions=%s masks=%s\n" %
(name, str([(x.start, x.end)
for x in chunk]), masked_regions))
continue
out = intervals
if options.extend_at and not options.extend_with:
if options.extend_at == "5only":
intervals = [(max(0, intervals[0][0] - options.extend_by),
intervals[0][0])]
elif options.extend_at == "3only":
intervals = [(intervals[-1][1],
min(lcontig,
intervals[-1][1] + options.extend_by))]
else:
if options.extend_at in ("5", "both"):
intervals[0] = (max(0,
intervals[0][0] - options.extend_by),
intervals[0][1])
if options.extend_at in ("3", "both"):
intervals[-1] = (intervals[-1][0],
min(lcontig,
intervals[-1][1] + options.extend_by))
if not positive:
intervals = [(lcontig - x[1], lcontig - x[0])
for x in intervals[::-1]]
out.reverse()
s = [
fasta.getSequence(contig, strand, start, end)
for start, end in intervals
]
# IMS: allow for masking of sequences
s = Masker.maskSequences(s, options.masker)
l = sum([len(x) for x in s])
if (l < options.min_length
or (options.max_length and l > options.max_length)):
nskipped_length += 1
if options.loglevel >= 1:
options.stdlog.write("# skipped because length out of bounds "
"%s: regions=%s len=%i\n" %
(name, str(intervals), l))
continue
if options.extend_at and options.extend_with:
extension = "".join((options.extend_with, ) * options.extend_by)
if options.extend_at in ("5", "both"):
s[1] = extension + s[1]
if options.extend_at in ("3", "both"):
s[-1] = s[-1] + extension
if options.fold_at:
n = options.fold_at
s = "".join(s)
seq = "\n".join([s[i:i + n] for i in range(0, len(s), n)])
else:
seq = "\n".join(s)
if options.header_attr:
attributes = " ".join(
[":".join([ax, ay]) for ax, ay in chunk[0].asDict().items()])
options.stdout.write(
">%s %s:%s:%s feature:%s %s\n%s\n" %
(name, contig, strand, ";".join(
["%i-%i" % x
for x in out]), chunk[0].feature, attributes, seq))
else:
options.stdout.write(
">%s %s:%s:%s\n%s\n" %
(name, contig, strand, ";".join(["%i-%i" % x
for x in out]), seq))
noutput += 1
E.info("ninput=%i, noutput=%i, nmasked=%i, nskipped_noexons=%i, "
"nskipped_masked=%i, nskipped_length=%i" %
(ninput, noutput, nmasked, nskipped_noexons, nskipped_masked,
nskipped_length))
E.stop()
def main(argv=None):
"""script main.
parses command line options in sys.argv, unless *argv* is given.
"""
if not argv:
argv = sys.argv
# setup command line parser
parser = E.ArgumentParser(description=__doc__)
parser.add_argument("--version", action='version', version="1.0")
parser.add_argument("-g",
"--genome-file",
dest="genome_file",
type=str,
help="filename with genome.")
parser.add_argument("--remove-regex",
dest="remove_regex",
type=str,
help="regular expression of contigs to remove.")
parser.add_argument("-e",
"--gff-file",
dest="gff_file",
type=str,
help="gff file to use for getting contig sizes.")
parser.add_argument(
"-f",
"--fixed-width-windows",
dest="fixed_width_windows",
type=str,
help="fixed width windows. Supply the window size as a "
"parameter. Optionally supply an offset.")
parser.set_defaults(
genome_file=None,
remove_regex=None,
fixed_windows=None,
)
# add common options (-h/--help, ...) and parse command line
(args) = E.start(parser, argv=argv)
if args.remove_regex:
remove_regex = re.compile(args.remove_regex)
else:
remove_regex = None
if args.fixed_width_windows:
v = list(map(int, args.fixed_width_windows.split(",")))
if len(v) == 2:
window_size, window_increment = v
elif len(v) == 1:
window_size, window_increment = v[0], v[0]
else:
raise ValueError(
"could not parse window size '%s': should be size[,increment]"
% args.fixed_width_windows)
if args.gff_file:
infile = iotools.open_file(args.gff_file, "r")
gff = GTF.readFromFile(infile)
infile.close()
for g in gff:
try:
map_contig2size[g.mName] = max(map_contig2size[g.mName], g.end)
except ValueError:
map_contig2size[g.mName] = g.end
else:
gff = None
if args.genome_file:
fasta = IndexedFasta.IndexedFasta(args.genome_file)
map_contig2size = fasta.getContigSizes(with_synonyms=False)
else:
fasta = None
if map_contig2size is None:
raise ValueError("no source of contig sizes supplied")
# do sth
counter = E.Counter()
for contig, size in list(map_contig2size.items()):
size = int(size)
counter.input += 1
if remove_regex and remove_regex.search(contig):
counter.skipped += 1
continue
if args.fixed_width_windows:
for x in range(0, size, window_increment):
if x + window_size > size:
continue
args.stdout.write("%s\t%i\t%i\n" %
(contig, x, min(size, x + window_size)))
counter.windows += 1
else:
args.stdout.write("%s\t%i\t%i\n" % (contig, 0, size))
counter.windows += 1
counter.output += 1
E.info(str(counter))
# write footer and output benchmark information.
E.stop()
from cgat import IndexedFasta
from cgatcore import iotools
from cgat import Genomics
from cgatcore import expriment as E
parser = E.OptionParser(version="%prog version: $1.0$",
usage=globals()["__doc__"])
parser.add_option("-g", "--genome", dest="genome",
help="index fasta genome sequence")
parser.add_option("-O", "--per-utron-out", dest="outfile",
help="File name for output file that will contain one row"
"per entry in the input")
options, args = E.start(parser, sys.argv)
genome = IndexedFasta.IndexedFasta(options["genome"])
bedfile = Bed.iterator(options.stdin)
splice_site_dict = dict()
outfile = iotools.open_file(options["outfile"], "w")
outfile.write("\t".join("transcript_id",
"strand",
"ss5",
"ss3",
"contig",
"splice_site_start",
"splice_site_end",
"utron_size"))
for utron in bedfile:
def buildUngappedContigBed(infile, outfiles):
'''
Constructs :term:`BED` format files containing both gapped and ungapped
contig sizes from an index genome :term:`fasta` file.
Parameters
----------
infile: str
infile is constructed from `PARAMS` variable to retrieve
the `genome` :term:`fasta` file
assembly_gaps_min_size: int
`PARAMS` - the minimum size (in nucleotides) for an assembly gap
Returns
-------
outfiles: list
two separate :term:`BED` format output files containing the contig sizes
for contigs with and without gaps. The names are defined
in the `PARAMS` `interface_contigs_ungapped_bed` and
`interface_gaps_bed` parameters.
'''
prefix = P.snip(infile, ".fasta")
fasta = IndexedFasta.IndexedFasta(prefix)
outs_nogap = iotools.open_file(outfiles[0], "w")
outs_gap = iotools.open_file(outfiles[1], "w")
min_gap_size = PARAMS["assembly_gaps_min_size"]
for contig, size in fasta.getContigSizes(with_synonyms=False).items():
seq = fasta.getSequence(contig)
def gapped_regions(seq):
is_gap = seq[0] == "N"
last = 0
for x, c in enumerate(seq):
if c == "N":
if not is_gap:
last = x
is_gap = True
else:
if is_gap:
yield (last, x)
last = x
is_gap = False
if is_gap:
yield last, size
last_end = 0
for start, end in gapped_regions(seq):
if end - start < min_gap_size:
continue
if last_end != 0:
outs_nogap.write("%s\t%i\t%i\n" % (contig, last_end, start))
outs_gap.write("%s\t%i\t%i\n" % (contig, start, end))
last_end = end
if last_end < size:
outs_nogap.write("%s\t%i\t%i\n" % (contig, last_end, size))
outs_nogap.close()
outs_gap.close()
def main(argv=None):
"""script main.
parses command line options in sys.argv, unless *argv* is given.
"""
if not argv:
argv = sys.argv
# setup command line parser
parser = E.OptionParser(version="%prog version: $Id",
usage=globals()["__doc__"])
parser.add_option("-u",
"--ucsc-genome",
dest="ucsc_genome",
type="string",
help="UCSC genome identifier [default=%default].")
parser.add_option("-g",
"--genome-file",
dest="genome_file",
type="string",
help="filename with genome [default=%default].")
parser.add_option("--extend",
dest="extension",
type="int",
help="extend tags by this number of bases "
"[default=%default].")
parser.add_option("--shift-size",
dest="shift",
type="int",
help="shift tags by this number of bases "
"[default=%default].")
parser.add_option("--window-size",
dest="window_size",
type="int",
help="window size to be used in the analysis"
"[default=%default].")
parser.add_option("--saturation-iterations",
dest="saturation_iterations",
type="int",
help="iterations for saturation analysis "
"[default=%default].")
parser.add_option("-t",
"--toolset",
dest="toolset",
type="choice",
action="append",
choices=("saturation", "coverage", "enrichment", "dmr",
"rms", "rpm", "all", "convert"),
help="actions to perform [default=%default].")
parser.add_option("-w",
"--bigwig-file",
dest="bigwig",
action="store_true",
help="store wig files as bigwig files - requires a "
"genome file [default=%default]")
parser.add_option("--treatment",
dest="treatment_files",
type="string",
action="append",
help="BAM files for treatment. At least one is required "
"[%default]")
parser.add_option("--control",
dest="control_files",
type="string",
action="append",
help="BAM files for control for differential "
"methylation analysis. Optional [%default].")
parser.add_option("--input",
dest="input_files",
type="string",
action="append",
help="BAM files for input correction. "
"Optional [%default].")
parser.add_option("--is-not-medip",
dest="is_medip",
action="store_false",
help="data is not MeDIP data and is not expected "
"to fit the calibration model. No CpG "
"density normalized rms data is computed"
"[default=%default].")
parser.add_option("--output-rdata",
dest="output_rdata",
action="store_true",
help="in dmr analysis, write R session to file. "
"The file name "
"is given by --ouptut-filename-pattern [%default].")
parser.add_option("--rdata-file",
dest="input_rdata",
type="string",
help="in dmr analysis, read saved R session from "
"file. This can be used to apply different "
"filters [%default]")
parser.add_option("--fdr-threshold",
dest="fdr_threshold",
type="float",
help="FDR threshold to apply for selecting DMR "
"[default=%default].")
parser.add_option("--fdr-method",
dest="fdr_method",
type="choice",
choices=("bonferroni", "BH", "holm", "hochberg",
"hommel", "BY", "fdr", "none"),
help="FDR method to apply for selecting DMR "
"[default=%default].")
parser.add_option("--bwa",
dest="bwa",
action="store_true",
help="alignment generated with bwa"
"[default=%default].")
parser.add_option("--unique",
dest="unique",
type="float",
help="Threshold p-value to determine which read pile\
ups are the result of PCR overamplification"
"[default=%default].")
parser.add_option("--chroms",
dest="chroms",
type="str",
help="Comma delimited list of chromosomes to include"
"[default=%default].")
parser.set_defaults(input_format="bam",
ucsc_genome="Hsapiens.UCSC.hg19",
genome_file=None,
extend=0,
shift=0,
window_size=300,
saturation_iterations=10,
toolset=[],
bigwig=False,
treatment_files=[],
control_files=[],
input_files=[],
output_rdata=False,
input_rdata=None,
is_medip=True,
fdr_threshold=0.1,
fdr_method="BH",
bwa=False,
unique=0.001,
chroms=None)
# add common options (-h/--help, ...) and parse command line
(options, args) = E.start(parser, argv=argv, add_output_options=True)
if "convert" in options.toolset:
results = []
for line in csv.DictReader(options.stdin, dialect="excel-tab"):
if line['edgeR.p.value'] == "NA":
continue
# assumes only a single treatment/control
treatment_name = options.treatment_files[0]
control_name = options.control_files[0]
status = "OK"
try:
results.append(
Expression.GeneExpressionResult._make((
"%s:%i-%i" %
(line['chr'], int(line['start']), int(line['stop'])),
treatment_name,
float(line['MSets1.rpkm.mean']),
0,
control_name,
float(line['MSets2.rpkm.mean']),
0,
float(line['edgeR.p.value']),
float(line['edgeR.adj.p.value']),
float(line['edgeR.logFC']),
math.pow(2.0, float(line['edgeR.logFC'])),
float(line['edgeR.logFC']), # no transform
["0", "1"][float(line['edgeR.adj.p.value']) <
options.fdr_threshold],
status)))
except ValueError as msg:
raise ValueError("parsing error %s in line: %s" % (msg, line))
Expression.writeExpressionResults(options.stdout, results)
return
if len(options.treatment_files) < 1:
raise ValueError("please specify a filename with sample data")
if options.bigwig and not options.genome_file:
raise ValueError("please provide a genome file when outputting bigwig")
if options.genome_file:
fasta = IndexedFasta.IndexedFasta(options.genome_file)
contig_sizes = fasta.getContigSizes()
if len(options.toolset) == 0:
options.toolset = ["all"]
do_all = "all" in options.toolset
if options.chroms is None:
chrstring = ""
else:
chroms = options.chroms.split(",")
chrstring = ' chr.select=c(\"%s\"), ' % '\",\"'.join(chroms)
# load MEDIPS
R.library('MEDIPS')
genome_file = 'BSgenome.%s' % options.ucsc_genome
R.library(genome_file)
window_size = options.window_size
extend = options.extend
shift = options.shift
saturation_iterations = options.saturation_iterations
uniq = float(options.unique)
if options.bwa is True:
BWA = "TRUE"
else:
BWA = "FALSE"
if "saturation" in options.toolset or do_all:
E.info("saturation analysis")
for fn in options.treatment_files + options.control_files:
paired = isPaired(fn)
R('''sr = MEDIPS.saturation(
file='%(fn)s',
BSgenome='%(genome_file)s',
shift=%(shift)i,
extend=%(extend)i,
window_size=%(window_size)i,
uniq=%(uniq)s,
nit = %(saturation_iterations)i,
paired = %(paired)s,
bwa = %(BWA)s,
%(chrstring)s
nrit = 1)''' % locals())
R.png(E.get_output_file("%s_saturation.png" % fn))
R('''MEDIPS.plotSaturation(sr)''')
R('''dev.off()''')
R('''write.table(sr$estimation, file ='%s', sep='\t')''' %
E.get_output_file("%s_saturation_estimation.tsv" % fn))
outfile = iotools.open_file(
E.get_output_file("%s_saturation.tsv" % fn), "w")
outfile.write("category\tvalues\n")
outfile.write("estimated_correlation\t%s\n" %
",".join(["%f" % x for x in R('''sr$maxEstCor''')]))
outfile.write("true_correlation\t%s\n" %
",".join(["%f" % x for x in R('''sr$maxTruCor''')]))
outfile.write("nreads\t%s\n" %
",".join(["%i" % x
for x in R('''sr$numberReads''')]))
outfile.close()
if "coverage" in options.toolset or do_all:
E.info("CpG coverage analysis")
for fn in options.treatment_files + options.control_files:
paired = isPaired(fn)
R('''cr = MEDIPS.seqCoverage(
file='%(fn)s',
BSgenome='%(genome_file)s',
pattern='CG',
shift=%(shift)i,
extend=%(extend)i,
paired=%(paired)s,
bwa=%(BWA)s,
%(chrstring)s
uniq=%(uniq)s)''' % locals())
R.png(E.get_output_file("%s_cpg_coverage_pie.png" % fn))
R('''MEDIPS.plotSeqCoverage(seqCoverageObj=cr,
type = "pie", cov.level = c(0, 1, 2, 3, 4, 5))''')
R('''dev.off()''')
R.png(E.get_output_file("%s_cpg_coverage_hist.png" % fn))
R('''MEDIPS.plotSeqCoverage(seqCoverageObj=cr,
type = "hist", t=15)''')
R('''dev.off()''')
# note: this file is large
R('''write.table(cr$cov.res, file=gzfile('%s','w'),
sep='\t')''' %
E.get_output_file("%s_saturation_coveredpos.tsv.gz" % fn))
if 'enrichment' in options.toolset or do_all:
E.info("CpG enrichment analysis")
outfile = iotools.open_file(E.get_output_file("enrichment.tsv.gz"),
"w")
slotnames = (("regions.CG", "regions_CG",
"%i"), ("regions.C", "regions_C",
"%s"), ("regions.G", "regions_G", "%f"),
("regions.relH", "regions_relH",
"%i"), ("regions.GoGe", "regions_GoGe",
"%i"), ("genome.CG", "genome_CG",
"%s"), ("genome.C", "genome_C", "%s"),
("genome.G", "genome_G", "%i"), ("genome.relH",
"genome_relH", "%i"),
("enrichment.score.relH", "enrichment_relH", "%s"),
("enrichment.score.GoGe", "enrichment_GoGe", "%s"))
outfile.write("\t".join(['sample'] + [x[1] for x in slotnames]) + "\n")
for fn in options.treatment_files + options.control_files:
paired = isPaired(fn)
R('''ce = MEDIPS.CpGenrich(
file='%(fn)s',
BSgenome='%(genome_file)s',
shift=%(shift)i,
extend=%(extend)i,
paired=%(paired)s,
bwa=%(BWA)s,
%(chrstring)s
uniq=%(uniq)s)''' % locals())
outfile.write("%s" % fn)
for slotname, label, pattern in slotnames:
value = tuple(R('''ce$%s''' % slotname))
if len(value) == 0:
value = ""
outfile.write("\t%s" % pattern % value[0])
outfile.write("\n")
outfile.close()
if options.input_rdata:
E.info("reading R session info from '%s'" % options.input_rdata)
R('''load('%s')''' % options.input_rdata)
else:
if "dmr" in options.toolset or "correlation" in options.toolset \
or do_all:
# build four sets
for x, fn in enumerate(options.treatment_files):
paired = isPaired(fn)
E.info("loading '%s'" % fn)
R('''treatment_R%(x)i = MEDIPS.createSet(
file='%(fn)s',
BSgenome='%(genome_file)s',
shift=%(shift)i,
extend=%(extend)i,
window_size=%(window_size)i,
paired=%(paired)s,
bwa=%(BWA)s,
%(chrstring)s
uniq=%(uniq)s)''' % locals())
R('''treatment_set = c(%s)''' % ",".join([
"treatment_R%i" % x
for x in range(len(options.treatment_files))
]))
if options.control_files:
for x, fn in enumerate(options.control_files):
paired = isPaired(fn)
E.info("loading '%s'" % fn)
R('''control_R%(x)i = MEDIPS.createSet(
file='%(fn)s',
BSgenome='%(genome_file)s',
shift=%(shift)i,
extend=%(extend)i,
window_size=%(window_size)i,
paired=%(paired)s,
bwa=%(BWA)s,
%(chrstring)s
uniq=%(uniq)s)''' % locals())
R('''control_set = c(%s)''' % ",".join([
"control_R%i" % x
for x in range(len(options.control_files))
]))
# build coupling vector
R('''CS = MEDIPS.couplingVector(pattern="CG",
refObj = treatment_set[[1]])''')
if "correlation" in options.toolset or do_all:
R('''cor.matrix = MEDIPS.correlation(
c(treatment_set, control_set))''')
R('''write.table(cor.matrix,
file='%s',
sep="\t")''' % E.get_output_file("correlation"))
if "dmr" in options.toolset or do_all:
# Data that does not fit the model causes
# "Error in 1:max_signal_index : argument of length 0"
# The advice is to set MeDIP=FALSE
# See: http://comments.gmane.org/
# gmane.science.biology.informatics.conductor/52319
if options.is_medip:
medip = "TRUE"
else:
medip = "FALSE"
fdr_method = options.fdr_method
E.info("applying test for differential methylation")
R('''meth = MEDIPS.meth(
MSet1 = treatment_set,
MSet2 = control_set,
CSet = CS,
ISet1 = NULL,
ISet2 = NULL,
p.adj = "%(fdr_method)s",
diff.method = "edgeR",
MeDIP = %(medip)s,
CNV = F,
minRowSum = 1)''' % locals())
# Note: several Gb in size
# Output full methylation data table
R('''write.table(meth,
file=gzfile('%s', 'w'),
sep="\t",
row.names=F,
quote=F)''' % E.get_output_file("data.tsv.gz"))
# save R session
if options.output_rdata:
R('''save.image(file='%s', safe=FALSE)''' %
E.get_output_file("session.RData"))
# DMR analysis - test for windows and output
if "dmr" in options.toolset:
E.info("selecting differentially methylated windows")
# test windows for differential methylation
fdr_threshold = options.fdr_threshold
R('''tested = MEDIPS.selectSig(meth,
adj=T,
ratio=NULL,
p.value=%(fdr_threshold)f,
bg.counts=NULL,
CNV=F)''' % locals())
R('''write.table(tested,
file=gzfile('%s', 'w'),
sep="\t",
quote=F)''' % E.get_output_file("significant_windows.gz"))
# select gain and merge adjacent windows
try:
R('''gain = tested[which(tested[, grep("logFC", colnames(tested))] > 0),];
gain_merged = MEDIPS.mergeFrames(frames=gain, distance=1)''')
E.info('gain output: %s, merged: %s' %
(str(R('''dim(gain)''')), str(R('''dim(gain_merged)'''))))
R('''of=gzfile('%s', 'w');
write.table(gain_merged,
file=of,
sep="\t",
quote=F,
row.names=FALSE,
col.names=FALSE); close(of)''' % E.get_output_file("gain.bed.gz"))
except rpy2.rinterface.RRuntimeError as msg:
E.warn("could not compute gain windows: msg=%s" % msg)
# select loss and merge adjacent windows
try:
R('''loss = tested[which(tested[, grep("logFC", colnames(tested))] < 0),];
loss_merged = MEDIPS.mergeFrames(frames=loss, distance=1)''')
E.info('loss output: %s, merged: %s' %
(str(R('''dim(loss)''')), str(R('''dim(loss_merged)'''))))
R('''of=gzfile('%s', 'w');
write.table(loss_merged,
file=of,
sep="\t",
quote=F,
row.names=F,
col.names=F); close(of)''' % E.get_output_file("loss.bed.gz"))
except rpy2.rinterface.RRuntimeError as msg:
E.warn("could not compute loss windows: msg=%s" % msg)
# if "rpm" in options.toolset or do_all:
# outputfile = E.get_output_file("rpm.wig")
# R('''MEDIPS.exportWIG(file = '%(outputfile)s',
# data = CONTROL.SET, raw = T, descr = "rpm")''' %
# locals())
# if options.bigwig:
# bigwig(outputfile, contig_sizes)
# else:
# compress(outputfile)
# if "rms" in options.toolset or do_all:
# outputfile = E.get_output_file("rms.wig")
# R('''MEDIPS.exportWIG(file = '%(outputfile)s',
# data = CONTROL.SET, raw = F, descr = "rms")''' %
# locals())
# if options.bigwig:
# bigwig(outputfile, contig_sizes)
# else:
# compress(outputfile)
# write footer and output benchmark information.
E.stop()
def main(argv=None):
if argv is None:
argv = sys.argv
parser = E.ArgumentParser(description=__doc__)
parser.add_argument("--version", action='version', version="1.0")
parser.add_argument(
"-m",
"--method",
dest="method",
type=str,
choices=("add-flank", "add-upstream-flank", "add-downstream-flank",
"crop", "crop-unique", "complement-groups", "combine-groups",
"filter-range", "join-features", "merge-features", "sanitize",
"to-forward-coordinates", "to-forward-strand", "rename-chr"),
help="method to apply ")
parser.add_argument("--ignore-strand",
dest="ignore_strand",
help="ignore strand information.",
action="store_true")
parser.add_argument("--is-gtf",
dest="is_gtf",
action="store_true",
help="input will be treated as gtf.")
parser.add_argument("-c",
"--contigs-tsv-file",
dest="input_filename_contigs",
type=str,
help="filename with contig lengths.")
parser.add_argument(
"--agp-file",
dest="input_filename_agp",
type=str,
help="agp file to map coordinates from contigs to scaffolds.")
parser.add_argument("-g",
"--genome-file",
dest="genome_file",
type=str,
help="filename with genome.")
parser.add_argument("--crop-gff-file",
dest="filename_crop_gff",
type=str,
help="GFF/GTF file to crop against.")
parser.add_argument(
"--group-field",
dest="group_field",
type=str,
help="""gff field/attribute to group by such as gene_id, "
"transcript_id, ... .""")
parser.add_argument(
"--filter-range",
dest="filter_range",
type=str,
help="extract all elements overlapping a range. A range is "
"specified by eithor 'contig:from..to', 'contig:+:from..to', "
"or 'from,to' .")
parser.add_argument("--sanitize-method",
dest="sanitize_method",
type=str,
choices=("ucsc", "ensembl", "genome"),
help="method to use for sanitizing chromosome names. "
".")
parser.add_argument(
"--flank-method",
dest="flank_method",
type=str,
choices=("add", "extend"),
help="method to use for adding flanks. ``extend`` will "
"extend existing features, while ``add`` will add new features. "
".")
parser.add_argument("--skip-missing",
dest="skip_missing",
action="store_true",
help="skip entries on missing contigs. Otherwise an "
"exception is raised .")
parser.add_argument(
"--contig-pattern",
dest="contig_pattern",
type=str,
help="a comma separated list of regular expressions specifying "
"contigs to be removed when running method sanitize .")
parser.add_argument(
"--assembly-report",
dest="assembly_report",
type=str,
help="path to assembly report file which allows mapping of "
"ensembl to ucsc contigs when running method sanitize .")
parser.add_argument(
"--assembly-report-hasids",
dest="assembly_report_hasIDs",
type=int,
help="path to assembly report file which allows mapping of "
"ensembl to ucsc contigs when running method sanitize .")
parser.add_argument(
"--assembly-report-ucsccol",
dest="assembly_report_ucsccol",
type=int,
help="column in the assembly report containing ucsc contig ids"
".")
parser.add_argument(
"--assembly-report-ensemblcol",
dest="assembly_report_ensemblcol",
type=int,
help="column in the assembly report containing ensembl contig ids")
parser.add_argument(
"--assembly-extras",
dest="assembly_extras",
type=str,
help="additional mismatches between gtf and fasta to fix when"
"sanitizing the genome .")
parser.add_argument("--extension-upstream",
dest="extension_upstream",
type=float,
help="extension for upstream end .")
parser.add_argument("--extension-downstream",
dest="extension_downstream",
type=float,
help="extension for downstream end .")
parser.add_argument("--min-distance",
dest="min_distance",
type=int,
help="minimum distance of features to merge/join .")
parser.add_argument("--max-distance",
dest="max_distance",
type=int,
help="maximum distance of features to merge/join .")
parser.add_argument("--min-features",
dest="min_features",
type=int,
help="minimum number of features to merge/join .")
parser.add_argument("--max-features",
dest="max_features",
type=int,
help="maximum number of features to merge/join .")
parser.add_argument(
"--rename-chr-file",
dest="rename_chr_file",
type=str,
help="mapping table between old and new chromosome names."
"TAB separated 2-column file.")
parser.set_defaults(input_filename_contigs=False,
filename_crop_gff=None,
input_filename_agp=False,
genome_file=None,
rename_chr_file=None,
add_up_flank=None,
add_down_flank=None,
complement_groups=False,
crop=None,
crop_unique=False,
ignore_strand=False,
filter_range=None,
min_distance=0,
max_distance=0,
min_features=1,
max_features=0,
extension_upstream=1000,
extension_downstream=1000,
sanitize_method="ucsc",
flank_method="add",
output_format="%06i",
skip_missing=False,
is_gtf=False,
group_field=None,
contig_pattern=None,
assembly_report=None,
assembly_report_hasIDs=1,
assembly_report_ensemblcol=4,
assembly_report_ucsccol=9,
assembly_extras=None)
(args) = E.start(parser, argv=argv)
contigs = None
genome_fasta = None
chr_map = None
if args.input_filename_contigs:
contigs = Genomics.readContigSizes(
iotools.open_file(args.input_filename_contigs, "r"))
if args.genome_file:
genome_fasta = IndexedFasta.IndexedFasta(args.genome_file)
contigs = genome_fasta.getContigSizes()
if args.rename_chr_file:
chr_map = {}
with open(args.rename_chr_file, 'r') as filein:
reader = csv.reader(filein, delimiter='\t')
for row in reader:
if len(row) != 2:
raise ValueError(
"Mapping table must have exactly two columns")
chr_map[row[0]] = row[1]
if not len(chr_map.keys()) > 0:
raise ValueError("Empty mapping dictionnary")
if args.assembly_report:
df = pd.read_csv(args.assembly_report,
comment="#",
header=None,
sep="\t")
# fixes naming inconsistency in assembly report: ensembl chromosome
# contigs found in columnn 0, ensembl unassigned contigs found in
# column 4.
if args.assembly_report_hasIDs == 1:
ucsccol = args.assembly_report_ucsccol
ensemblcol = args.assembly_report_ensemblcol
df.loc[df[1] == "assembled-molecule",
ensemblcol] = df.loc[df[1] == "assembled-molecule", 0]
if args.sanitize_method == "ucsc":
assembly_dict = df.set_index(ensemblcol)[ucsccol].to_dict()
elif args.sanitize_method == "ensembl":
assembly_dict = df.set_index(ucsccol)[ensemblcol].to_dict()
else:
raise ValueError(''' When using assembly report,
please specify sanitize method as either
"ucsc" or "ensembl" to specify direction of conversion
''')
else:
assembly_dict = {}
if args.assembly_extras is not None:
assembly_extras = args.assembly_extras.split(",")
for item in assembly_extras:
item = item.split("-")
assembly_dict[item[0]] = item[1]
if args.method in ("forward_coordinates", "forward_strand",
"add-flank", "add-upstream-flank",
"add-downstream-flank") \
and not contigs:
raise ValueError("inverting coordinates requires genome file")
if args.input_filename_agp:
agp = AGP.AGP()
agp.readFromFile(iotools.open_file(args.input_filename_agp, "r"))
else:
agp = None
gffs = GTF.iterator(args.stdin)
if args.method in ("add-upstream-flank", "add-downstream-flank",
"add-flank"):
add_upstream_flank = "add-upstream-flank" == args.method
add_downstream_flank = "add-downstream-flank" == args.method
if args.method == "add-flank":
add_upstream_flank = add_downstream_flank = True
upstream_flank = int(args.extension_upstream)
downstream_flank = int(args.extension_downstream)
extend_flank = args.flank_method == "extend"
if args.is_gtf:
iterator = GTF.flat_gene_iterator(gffs)
else:
iterator = GTF.joined_iterator(gffs, args.group_field)
for chunk in iterator:
is_positive = Genomics.IsPositiveStrand(chunk[0].strand)
chunk.sort(key=lambda x: (x.contig, x.start))
lcontig = contigs[chunk[0].contig]
if extend_flank:
if add_upstream_flank:
if is_positive:
chunk[0].start = max(0,
chunk[0].start - upstream_flank)
else:
chunk[-1].end = min(lcontig,
chunk[-1].end + upstream_flank)
if add_downstream_flank:
if is_positive:
chunk[-1].end = min(lcontig,
chunk[-1].end + downstream_flank)
else:
chunk[0].start = max(0,
chunk[0].start - downstream_flank)
else:
if add_upstream_flank:
gff = GTF.Entry()
if is_positive:
gff.copy(chunk[0])
gff.end = gff.start
gff.start = max(0, gff.start - upstream_flank)
chunk.insert(0, gff)
else:
gff.copy(chunk[-1])
gff.start = gff.end
gff.end = min(lcontig, gff.end + upstream_flank)
chunk.append(gff)
gff.feature = "5-Flank"
gff.mMethod = "gff2gff"
if add_downstream_flank:
gff = GTF.Entry()
if is_positive:
gff.copy(chunk[-1])
gff.start = gff.end
gff.end = min(lcontig, gff.end + downstream_flank)
chunk.append(gff)
else:
gff.copy(chunk[0])
gff.end = gff.start
gff.start = max(0, gff.start - downstream_flank)
chunk.insert(0, gff)
gff.feature = "3-Flank"
gff.mMethod = "gff2gff"
if not is_positive:
chunk.reverse()
for gff in chunk:
args.stdout.write(str(gff) + "\n")
elif args.method == "complement-groups":
iterator = GTF.joined_iterator(gffs, group_field=args.group_field)
for chunk in iterator:
if args.is_gtf:
chunk = [x for x in chunk if x.feature == "exon"]
if len(chunk) == 0:
continue
chunk.sort(key=lambda x: (x.contig, x.start))
x = GTF.Entry()
x.copy(chunk[0])
x.start = x.end
x.feature = "intron"
for c in chunk[1:]:
x.end = c.start
args.stdout.write(str(x) + "\n")
x.start = c.end
elif args.method == "combine-groups":
iterator = GTF.joined_iterator(gffs, group_field=args.group_field)
for chunk in iterator:
chunk.sort(key=lambda x: (x.contig, x.start))
x = GTF.Entry()
x.copy(chunk[0])
x.end = chunk[-1].end
x.feature = "segment"
args.stdout.write(str(x) + "\n")
elif args.method == "join-features":
for gff in combineGFF(gffs,
min_distance=args.min_distance,
max_distance=args.max_distance,
min_features=args.min_features,
max_features=args.max_features,
merge=False,
output_format=args.output_format):
args.stdout.write(str(gff) + "\n")
elif args.method == "merge-features":
for gff in combineGFF(gffs,
min_distance=args.min_distance,
max_distance=args.max_distance,
min_features=args.min_features,
max_features=args.max_features,
merge=True,
output_format=args.output_format):
args.stdout.write(str(gff) + "\n")
elif args.method == "crop":
for gff in cropGFF(gffs, args.filename_crop_gff):
args.stdout.write(str(gff) + "\n")
elif args.method == "crop-unique":
for gff in cropGFFUnique(gffs):
args.stdout.write(str(gff) + "\n")
elif args.method == "filter-range":
contig, strand, interval = None, None, None
try:
contig, strand, start, sep, end = re.match(
"(\S+):(\S+):(\d+)(\.\.|-)(\d+)", args.filter_range).groups()
except AttributeError:
pass
if not contig:
try:
contig, start, sep, end = re.match("(\S+):(\d+)(\.\.|-)(\d+)",
args.filter_range).groups()
strand = None
except AttributeError:
pass
if not contig:
try:
start, end = re.match("(\d+)(\.\.|\,|\-)(\d+)",
args.filter_range).groups()
except AttributeError:
raise "can not parse range %s" % args.filter_range
contig = None
strand = None
if start:
interval = (int(start), int(end))
else:
interval = None
E.debug("filter: contig=%s, strand=%s, interval=%s" %
(str(contig), str(strand), str(interval)))
for gff in GTF.iterator_filtered(gffs,
contig=contig,
strand=strand,
interval=interval):
args.stdout.write(str(gff) + "\n")
elif args.method == "sanitize":
def assemblyReport(id):
if id in assembly_dict.keys():
id = assembly_dict[id]
# if not in dict, the contig name is forced
# into the desired convention, this is helpful user
# modified gff files that contain additional contigs
elif args.sanitize_method == "ucsc":
if not id.startswith("contig") and not id.startswith("chr"):
id = "chr%s" % id
elif args.sanitize_method == "ensembl":
if id.startswith("contig"):
return id[len("contig"):]
elif id.startswith("chr"):
return id[len("chr"):]
return id
if args.sanitize_method == "genome":
if genome_fasta is None:
raise ValueError("please specify --genome-file= when using "
"--sanitize-method=genome")
f = genome_fasta.getToken
else:
if args.assembly_report is None:
raise ValueError(
"please specify --assembly-report= when using "
"--sanitize-method=ucsc or ensembl")
f = assemblyReport
skipped_contigs = collections.defaultdict(int)
outofrange_contigs = collections.defaultdict(int)
filtered_contigs = collections.defaultdict(int)
for gff in gffs:
try:
gff.contig = f(gff.contig)
except KeyError:
if args.skip_missing:
skipped_contigs[gff.contig] += 1
continue
else:
raise
if genome_fasta:
lcontig = genome_fasta.getLength(gff.contig)
if lcontig < gff.end:
outofrange_contigs[gff.contig] += 1
continue
if args.contig_pattern:
to_remove = [
re.compile(x) for x in args.contig_pattern.split(",")
]
if any([x.search(gff.contig) for x in to_remove]):
filtered_contigs[gff.contig] += 1
continue
args.stdout.write(str(gff) + "\n")
if skipped_contigs:
E.info("skipped %i entries on %i contigs: %s" %
(sum(skipped_contigs.values()),
len(list(skipped_contigs.keys())), str(skipped_contigs)))
if outofrange_contigs:
E.warn(
"skipped %i entries on %i contigs because they are out of range: %s"
% (sum(outofrange_contigs.values()),
len(list(
outofrange_contigs.keys())), str(outofrange_contigs)))
if filtered_contigs:
E.info("filtered out %i entries on %i contigs: %s" %
(sum(filtered_contigs.values()),
len(list(filtered_contigs.keys())), str(filtered_contigs)))
elif args.method == "rename-chr":
if not chr_map:
raise ValueError("please supply mapping file")
for gff in renameChromosomes(gffs, chr_map):
args.stdout.write(str(gff) + "\n")
else:
for gff in gffs:
if args.method == "forward_coordinates":
gff.invert(contigs[gff.contig])
if args.method == "forward_strand":
gff.invert(contigs[gff.contig])
gff.strand = "+"
if agp:
# note: this works only with forward coordinates
gff.contig, gff.start, gff.end = agp.mapLocation(
gff.contig, gff.start, gff.end)
args.stdout.write(str(gff) + "\n")
E.stop()
def main(argv=None):
"""script main.
parses command line options in sys.argv, unless *argv* is given.
"""
if not argv:
argv = sys.argv
# setup command line parser
parser = E.OptionParser(version="%prog version: $Id$",
usage=globals()["__doc__"])
parser.add_option(
"-g",
"--genome-file",
dest="genome_file",
type="string",
help="filename with Samtools indexed genome [default=%default].")
parser.add_option("-w",
"--window-size",
dest="window",
type="int",
help="Window size for tiling [default=%default].")
parser.add_option("-s",
"--shift-size",
dest="shift",
type="int",
help="Window shift for tiling [default=%default].")
parser.set_defaults(
genome_file=None,
window=1000,
shift=1000,
output_file=None,
)
# add common options (-h/--help, ...) and parse command line
(options, args) = E.start(parser, argv=argv)
ninput, nunchanged, nchanged = 0, 0, 0
# Open input file
E.info("Opening input file: %s" % options.genome_file)
fasta = IndexedFasta.IndexedFasta(options.genome_file)
contigs = fasta.getContigSizes(with_synonyms=False)
# Open output file
bed = options.stdout
shift = options.shift
# Loop over input files and convert to soft clipped
nwindows = 0
ncontigs = 0
for contig, stop in contigs.items():
ncontigs += 1
i = 0
while (i < stop):
j = min(i + options.window, stop)
#bed.write( """%(contig)s\t%(i)i\t%(j)i\t%(contig)s:%(i)i..%(j)i\n""" % locals() )
bed.write("""%(contig)s\t%(i)i\t%(j)i\n""" % locals())
nwindows += 1
i += shift
# Report statistics
E.info("ncontigs=%i, nwindows=%i" % (ncontigs, nwindows))
# write footer and output benchmark information.
E.stop()
def main(argv=None):
if not argv:
argv = sys.argv
parser = E.ArgumentParser(description=__doc__)
parser.add_argument("--version", action='version', version="1.0")
parser.add_argument("-g",
"--genome-file",
dest="genome_file",
type=str,
help="filename with genome.")
parser.add_argument("-i",
"--ignore-missing",
dest="ignore_missing",
action="store_true",
help="Ignore transcripts on contigs that are not "
"in the genome-file.")
parser.add_argument("-s",
"--restrict-source",
dest="restrict_source",
type=str,
choices=("protein_coding", "pseudogene", "lncRNA"),
help="restrict input by source.")
parser.add_argument("-m",
"--method",
dest="method",
type=str,
choices=(
"full",
"genome",
"exons",
"promotors",
"tts",
"regulons",
"tts-regulons",
"genes",
"territories",
"tss-territories",
"great-domains",
),
help="method for defining segments.")
parser.add_argument("-r",
"--territory-extension",
dest="radius",
type=int,
help="radius of a territory.")
parser.add_argument("-f",
"--flank-size",
dest="flank",
type=int,
help="size of the flanking region next to a gene.")
parser.add_argument(
"--flank-increment-size",
dest="increment",
type=int,
help="size of increment in flank in genestructure annotation ")
parser.add_argument("-p",
"--promotor-size",
dest="promotor",
type=int,
help="size of a promotor region.")
parser.add_argument("-u",
"--upstream-extension",
dest="upstream",
type=int,
help="size of region upstream of tss.")
parser.add_argument("-d",
"--downstream-extension",
dest="downstream",
type=int,
help="size of region downstream of tss.")
parser.add_argument("--gene-detail",
dest="detail",
type=str,
choices=("introns+exons", "exons", "introns"),
help="level of detail for gene structure annotation ")
parser.add_argument("--merge-overlapping-promotors",
dest="merge_promotors",
action="store_true",
help="merge overlapping promotors.")
parser.add_argument(
"--min-intron-length",
dest="min_intron_length",
type=int,
help="minimum intron length. If the distance between two "
"consecutive exons is smaller, the region will be marked "
"'unknown'.")
parser.add_argument(
"--is-unsorted",
dest="is_sorted",
action="store_false",
help="sort input before processing. Otherwise, the input is assumed "
"to be sorted.")
parser.set_defaults(
genome_file=None,
flank=1000,
increment=1000,
max_frameshift_length=4,
min_intron_length=30,
ignore_missing=False,
restrict_source=None,
method="genome",
radius=50000,
promotor=5000,
merge_promotors=False,
upstream=5000,
downstream=5000,
detail="exons",
is_sorted=True,
)
(args) = E.start(parser)
if args.genome_file:
fasta = IndexedFasta.IndexedFasta(args.genome_file)
else:
raise ValueError("please specify a --genome-file")
if not args.restrict_source:
iterator = GTF.iterator(args.stdin)
elif args.restrict_source:
iterator = GTF.iterator_filtered(GTF.iterator(args.stdin),
source=args.restrict_source)
# elif options.method in ("promotors", "tts", "regulons"):
# iterator = GTF.iterator_filtered( GTF.iterator(options.stdin), source = "protein_coding")
# else:
# iterator = GTF.iterator(options.stdin)
if not args.is_sorted:
iterator = GTF.iterator_sorted(iterator, sort_order="position")
if args.method == "full" or args.method == "genome":
segmentor = annotateGenome(iterator, fasta, args)
elif args.method == "territories":
segmentor = buildTerritories(iterator, fasta, 'gene', args)
elif args.method == "tss-territories":
segmentor = buildTerritories(iterator, fasta, 'tss', args)
elif args.method == "exons":
segmentor = annotateExons(iterator, fasta, args)
elif args.method == "promotors":
segmentor = annotatePromoters(iterator, fasta, args)
elif args.method == "regulons":
segmentor = annotateRegulons(iterator, fasta, True, args)
elif args.method == "tts-regulons":
segmentor = annotateRegulons(iterator, fasta, False, args)
elif args.method == "tts":
segmentor = annotateTTS(iterator, fasta, args)
elif args.method == "genes":
segmentor = annotateGenes(iterator, fasta, args)
elif args.method == "great-domains":
segmentor = annotateGREATDomains(iterator, fasta, args)
E.stop()
def main(argv=None):
"""script main.
parses command line options in sys.argv, unless *argv* is given.
"""
if not argv:
argv = sys.argv
# setup command line parser
parser = E.OptionParser(
version=
"%prog version: $Id: gtf2fasta.py 2861 2010-02-23 17:36:32Z andreas $",
usage=globals()["__doc__"])
parser.add_option("-g",
"--genome-file",
dest="genome_file",
type="string",
help="filename with genome [default=%default].")
parser.add_option(
"-i",
"--ignore-missing",
dest="ignore_missing",
action="store_true",
help=
"Ignore transcripts on contigs that are not in the genome-file [default=%default]."
)
parser.add_option(
"--min-intron-length",
dest="min_intron_length",
type="int",
help=
"minimum intron length. If the distance between two consecutive exons is smaller, the region will be marked 'unknown' [default=%default]."
)
parser.add_option("-m",
"--method",
dest="method",
type="choice",
choices=("full", ),
help="method to apply [default=%default].")
parser.set_defaults(
genome_file=None,
flank=1000,
max_frameshift_length=4,
min_intron_length=30,
ignore_missing=False,
restrict_source=None,
method="full",
report_step=1000,
)
# add common options (-h/--help, ...) and parse command line
(options, args) = E.start(parser, argv=argv, add_output_options=True)
if not options.genome_file:
raise ValueError("an indexed genome is required.")
fasta = IndexedFasta.IndexedFasta(options.genome_file)
iterator = GTF.transcript_iterator(GTF.iterator(options.stdin))
annotateGenome(iterator, fasta, options)
# write footer and output benchmark information.
E.stop()
def main(argv=None):
if argv is None:
argv = sys.argv
parser = E.ArgumentParser(description=__doc__)
parser.add_argument(
"-g", "--genome-file", dest="genome_file", type=str,
help="filename with genome.")
parser.add_argument(
"-a", "--aggregate-by", dest="aggregate", type=str,
choices=("name", "contig", "track", "none"),
help="aggregate counts by feature.")
parser.add_argument(
"-p", "--add-percent", dest="add_percent", action="store_true",
help="add percentages.")
parser.set_defaults(
genome_file=None,
aggregate="none",
add_percent=False,
)
(args) = E.start(parser, argv)
# get files
if args.genome_file:
fasta = IndexedFasta.IndexedFasta(args.genome_file)
else:
if args.add_percent:
raise ValueError("--add-percent option requires --genome-file")
fasta = None
if args.add_percent and not args.aggregate == "contig":
raise NotImplementedError(
"--add-percent option requires --aggregate=contig")
counts = collections.defaultdict(Counter)
total = Counter()
output_totals = True
if args.aggregate == "track":
keyf = lambda x: x.track
elif args.aggregate == "name":
keyf = lambda x: x.name
elif args.aggregate == "contig":
keyf = lambda x: x.contig
else:
keyf = lambda x: "all"
output_totals = False
for bed in Bed.iterator(args.stdin):
counts[keyf(bed)].add(bed)
total.add(bed)
outf = args.stdout
key = "track"
if args.add_percent:
outf.write("%s\t%s\n" % (key, "\t".join(Counter.headers_percent)))
else:
outf.write("%s\t%s\n" % (key, "\t".join(Counter.headers)))
total_bases = 0
for key, count in sorted(counts.items()):
if args.add_percent:
total_bases += fasta.getLength(key)
count.setSize(fasta.getLength(key))
outf.write("%s\t%s\n" % (key, str(count)))
if output_totals:
if args.add_percent:
count.setSize(total_bases)
outf.write("%s\t%s\n" % ("total", str(total)))
E.stop()