def summarize_metrics(args):
import numpy as np
import h5py
import pandas as pd
from ioutils import open_file_or_stdout
def parse_filename(filename):
c = filename.split('/')
d = {'dataset': c[2],
'cv_index': c[4].split('_')[-1],
'model_name': c[-1].split('.')[1],
'featureset': c[-1].split('.')[2],
'icshape_dataset': c[-1].split('.')[3]
}
return d
summary = []
for input_file in args.input_files:
d = parse_filename(input_file)
with h5py.File(input_file, 'r') as f:
d['accuracy'] = f['metrics/accuracy'][()]
d['roc_auc'] = f['metrics/roc_auc'][()]
summary.append(d)
summary = pd.DataFrame.from_records(summary)
summary = summary[['dataset', 'icshape_dataset', 'model_name', 'featureset', 'cv_index', 'accuracy', 'roc_auc']]
with open_file_or_stdout(args.output_file) as fout:
summary.to_csv(fout, sep='\t', index=False)
def read_duplicate_hist(args):
import pysam
import numpy as np
from ioutils import open_file_or_stdout
bin_size = args.bin_size
max_length = args.max_length
n = max_length // bin_size
bounds = np.arange(0, (n + 1) * bin_size, bin_size)
logger.info('read chrom sizes: ' + args.chrom_sizes_file)
chrom_sizes = {}
with open(args.chrom_sizes_file, 'r') as f:
for line in f:
c = line.strip().split('\t')
chrom_sizes[c[0]] = int(c[1])
logger.info('read input BAM/SAM file: ' + args.input_file)
sam = pysam.AlignmentFile(args.input_file, "rb")
dup_counts = np.zeros(n + 1, dtype=np.int64)
tot_counts = np.zeros(n + 1, dtype=np.int64)
max_length = args.max_length
for read in sam:
index = min(chrom_sizes[read.reference_name] // bin_size, n)
if read.is_duplicate:
dup_counts[index] += 1
tot_counts[index] += 1
logger.info('create output file: ' + args.output_file)
with open_file_or_stdout(args.output_file) as f:
f.write('bin\tduplicates\ttotal\n')
for i in range(n + 1):
f.write('{}\t{}\t{}\n'.format(bounds[i], dup_counts[i],
tot_counts[i]))
def extract_feature_sequence(args):
from pyfaidx import Fasta
from Bio.Seq import Seq
from ioutils import open_file_or_stdout
fout = open_file_or_stdout(args.output_file)
fastas = {}
with open(args.input_file, 'r') as fin:
for lineno, line in enumerate(fin):
feature = line.split('\t')[0]
gene_id, gene_type, gene_name, domain_id, transcript_id, start, end = feature.split(
'|')
start = int(start)
end = int(end)
if gene_type == 'genomic':
gene_type = 'genome'
if gene_type not in fastas:
fastas[gene_type] = Fasta(
os.path.join(args.genome_dir, 'fasta', gene_type + '.fa'))
if gene_type == 'genome':
chrom, gstart, gend, strand = gene_id.split('_')
gstart = int(gstart)
gend = int(gend)
seq = fastas[gene_type][chrom][gstart:gend].seq
if strand == '-':
seq = str(Seq(seq).reverse_complement())
else:
seq = fastas[gene_type][transcript_id][start:end].seq
seq = seq.upper()
fout.write('>{}\n'.format(feature))
fout.write(seq)
fout.write('\n')
fout.close()
def extract_mature_mirna_location(args):
from utils import read_gff, GFFRecord
from ioutils import open_file_or_stdin, open_file_or_stdout
from collections import OrderedDict, defaultdict
logger.info('read input GFF file: ' + args.input_file)
fin = open_file_or_stdin(args.input_file)
logger.info('open output BED file: ' + args.input_file)
fout = open_file_or_stdout(args.output_file)
# key: precursor_id, value: precursor record
precursors = OrderedDict()
# key: precursor_id, value: list of mature records
matures = defaultdict(list)
# read features from GFF file
for record in read_gff(fin):
if record.feature == 'miRNA_primary_transcript':
precursors[record.attr['ID']] = record
elif record.feature == 'miRNA':
matures[record.attr['Derives_from']].append(record)
# get locations of mature miRNAs
for precursor_id, precursor in precursors.items():
for mature in matures[precursor_id]:
if mature.strand == '+':
fout.write('{}\t{}\t{}\t{}\t0\t+\n'.format(
precursor.attr['Name'], mature.start - precursor.start,
mature.end - precursor.start + 1, mature.attr['Name']))
else:
fout.write('{}\t{}\t{}\t{}\t0\t+\n'.format(
precursor.attr['Name'], precursor.end - mature.end,
precursor.end - mature.start + 1, mature.attr['Name']))
fin.close()
fout.close()
def merge_data_frames(args):
import pandas as pd
import numpy as np
from ioutils import open_file_or_stdout
if (not args.on_index) and (args.on is None):
raise ValueError(
'argument --on is required if --on-index is not specified')
merged = None
for input_file in args.input_file:
logger.info('read input file: ' + input_file)
df = pd.read_table(input_file, sep=args.sep)
if merged is None:
merged = df
else:
if args.on_index:
merged = pd.merge(merged,
df,
how=args.how,
left_index=True,
right_index=True)
else:
merged = pd.merge(merged, df, how=args.how, on=args.on)
if args.fillna is not None:
merged.fillna(args.fillna, inplace=True)
logger.info('open output file: ' + args.output_file)
with open_file_or_stdout(args.output_file) as f:
merged.to_csv(f, sep=args.sep, header=True, index=args.on_index)
def fragment_length_hist(args):
import pysam
import numpy as np
from ioutils import open_file_or_stdout
logger.info('read input BAM/SAM file: ' + args.input_file)
sam = pysam.AlignmentFile(args.input_file, "rb")
max_length = args.max_length
counts = np.zeros(max_length + 1, dtype=np.int64)
read1 = None
for read in sam:
if (not read.is_paired) or (not read.is_proper_pair):
continue
if read.is_read1:
read1 = read
elif read.is_read2:
if read.query_name != read1.query_name:
continue
length = read.reference_end - read1.reference_start
counts[min(length, max_length)] += 1
with open_file_or_stdout(args.output_file) as f:
f.write('fragment_length\tcounts\n')
for i in range(max_length + 1):
f.write('{}\t{}\n'.format(i, counts[i]))
def count_transcript(args):
import pysam
import numpy as np
from ioutils import open_file_or_stdout
from collections import OrderedDict
logger.info('read input BAM/SAM file: ' + args.input_file)
sam = pysam.AlignmentFile(args.input_file, "rb")
counts = OrderedDict()
min_mapping_quality = args.min_mapping_quality
strandness = {'no': 0, 'forward': 1, 'reverse': 2}.get(args.strandness, 0)
for read in sam:
if read.is_unmapped:
continue
if read.mapping_quality < min_mapping_quality:
continue
if (strandness == 1) and read.is_reverse:
continue
if (strandness == 2) and (not read.is_reverse):
continue
if read.reference_name not in counts:
counts[read.reference_name] = 0
counts[read.reference_name] += 1
with open_file_or_stdout(args.output_file) as f:
if sam.header is not None:
for sq in sam.header['SQ']:
name = sq['SN']
f.write('{}\t{}\n'.format(name, counts.get(name, 0)))
else:
for name, count in counts.items():
f.write('{}\t{}\n'.format(name, count))
def chrom_sizes(args):
from Bio import SeqIO
from ioutils import open_file_or_stdin, open_file_or_stdout
fout = open_file_or_stdout(args.output_file)
with open_file_or_stdin(args.input_file) as fin:
for record in SeqIO.parse(fin, 'fasta'):
fout.write('{}\t{}\n'.format(record.id, len(record.seq)))
def gtf_to_transcript_table(args):
from ioutils import open_file_or_stdin, open_file_or_stdout
from collections import OrderedDict
feature = args.feature
default_transcript_type = args.transcript_type
default_gene_type = args.gene_type
fout = open_file_or_stdout(args.output_file)
with open_file_or_stdin(args.input_file) as fin:
transcripts = OrderedDict()
for line in fin:
c = line.strip().split('\t')
if c[0].startswith('#'):
continue
if c[2] != feature:
continue
attrs = {}
for a in c[8].split(';')[:-1]:
a = a.strip()
i = a.find(' ')
key = a[:i]
val = a[(i + 1):].strip('"')
attrs[key] = val
if 'transcript_name' not in attrs:
attrs['transcript_name'] = attrs['transcript_id']
if 'gene_name' not in attrs:
attrs['gene_name'] = attrs['gene_id']
if default_transcript_type is not None:
attrs['transcript_type'] = default_transcript_type
else:
if 'transcript_type' not in attrs:
attrs['transcript_type'] = 'unknown'
if default_gene_type is not None:
attrs['gene_type'] = default_gene_type
else:
if 'gene_type' not in attrs:
attrs['gene_type'] = 'unknown'
exon = [c[0], int(c[3]) - 1, int(c[4]), attrs['gene_id'], 0, c[6],
attrs['gene_id'], attrs['transcript_id'],
attrs['gene_name'], attrs['transcript_name'],
attrs['gene_type'], attrs['transcript_type'], c[1]]
transcript = transcripts.get(attrs['transcript_id'])
if transcript is None:
transcripts[attrs['transcript_id']] = exon
else:
if c[2] == 'exon':
transcript[1] = min(transcript[1], exon[1])
transcript[2] = max(transcript[2], exon[2])
header = ['chrom', 'start', 'end', 'name', 'score', 'strand',
'gene_id', 'transcript_id',
'gene_name', 'transcript_name',
'gene_type', 'transcript_type', 'source'
]
print('\t'.join(header), file=fout)
for transcript in transcripts.values():
print('\t'.join(str(a) for a in transcript), file=fout)
fout.close()
def rfam(args):
import numpy as np
import subprocess
from Bio import SeqIO
from io import StringIO
import re
from utils import random_sequences
from ioutils import open_file_or_stdout
alphabet = 'AUCG'
# read CM file
motif_name = 'RFAM'
with open(args.input_file, 'r') as f:
for line in f:
c = line.strip().split()
if c[0] == 'NAME':
motif_name = c[1]
break
n_motif_seqs = args.n - round(args.bg_percent*0.01*args.n)
n_bg_seqs = round(args.bg_percent*0.01*args.n)
# generate motif sequences
p = subprocess.Popen(['cmemit', '--nohmmonly', '-e', str(args.length), '-N', str(n_motif_seqs),
args.input_file], stdout=subprocess.PIPE)
out, _ = p.communicate()
sequences = []
starts = np.zeros(n_motif_seqs, dtype=np.int32)
ends = np.zeros(n_motif_seqs, dtype=np.int32)
labels = np.zeros(args.n, dtype=np.int32)
labels[:n_motif_seqs] = 1
pat_cmemit = re.compile(r'^[^/]+/([0-9]+)\-([0-9]+)$')
for i, record in enumerate(SeqIO.parse(StringIO(str(out, encoding='ascii')), 'fasta')):
start, end = pat_cmemit.match(record.id).groups()
sequences.append(str(record.seq))
starts[i] = int(start) + 1
ends[i] = int(end)
# generate background sequences
if n_bg_seqs > 0:
sequences += random_sequences(args.length, alphabet=alphabet, size=n_bg_seqs)
starts = np.append(starts, np.zeros(n_bg_seqs, dtype=np.int32))
ends = np.append(ends, np.zeros(n_bg_seqs, dtype=np.int32))
# shuffle orders
logger.info('generate {} motif sequences and {} background sequences'.format(n_motif_seqs, n_bg_seqs))
seq_indices = np.random.permutation(args.n)
sequences = [sequences[i] for i in seq_indices]
labels = labels[seq_indices]
starts = starts[seq_indices]
ends = ends[seq_indices]
logger.info('create output file: ' + args.output_file)
fout = open_file_or_stdout(args.output_file)
for i, seq in enumerate(sequences):
fout.write('>{}_{:06d},{},{},{}\n'.format(motif_name, i + 1, labels[i], starts[i], ends[i]))
fout.write(seq)
fout.write('\n')
fout.close()
def extract_longest_transcript(args):
from ioutils import open_file_or_stdin, open_file_or_stdout
from collections import defaultdict
from functools import partial
feature = args.feature
genes = defaultdict(partial(defaultdict, int))
lines = []
logger.info('read gtf file: ' + args.input_file)
with open_file_or_stdin(args.input_file) as fin:
lineno = 0
for line in fin:
lineno += 1
c = line.strip().split('\t')
if c[0].startswith('#'):
continue
if c[2] != feature:
lines.append(('#other#', line))
continue
attrs = {}
for a in c[8].split(';')[:-1]:
a = a.strip()
i = a.find(' ')
key = a[:i]
val = a[(i + 1):].strip('"')
attrs[key] = val
transcript_id = attrs.get('transcript_id')
if transcript_id is None:
raise ValueError(
'transcript_id not found in GTF file at line {}'.format(
lineno))
gene_id = attrs.get('gene_id')
if gene_id is None:
raise ValueError(
'gene_id not found in GTF file at line {}'.format(lineno))
lines.append((transcript_id, line))
genes[gene_id][transcript_id] += int(c[4]) - int(c[3]) + 1
kept_transcripts = set()
kept_transcripts.add('#other#')
for gene_id, gene in genes.items():
max_length = 0
max_transcript = None
for transcript_id, length in gene.items():
if length > max_length:
max_length = length
max_transcript = transcript_id
kept_transcripts.add(transcript_id)
logger.info('number of genes: {}'.format(len(genes)))
logger.info('number of transcripts: {}'.format(
sum(map(len, genes.values()))))
logger.info(
'number of longest transcripts: {}'.format(len(kept_transcripts) - 1))
logger.info('write output gtf file: ' + args.output_file)
with open_file_or_stdout(args.output_file) as fout:
for transcript_id, line in lines:
if transcript_id in kept_transcripts:
fout.write(line)
def normalize(args):
from ioutils import open_file_or_stdin, open_file_or_stdout
import pandas as pd
with open_file_or_stdin(args.input_file) as f:
matrix = pd.read_table(f, sep='\t', index_col=0)
if args.method == 'cpm':
matrix = 1e6 * matrix.astype('float') / matrix.sum(axis=0)
with open_file_or_stdout(args.output_file) as f:
matrix.to_csv(f, sep='\t', header=True, index=True, na_rep='NA')
def background(args):
from utils import random_sequences
from ioutils import open_file_or_stdout
sequences = random_sequences(args.length, alphabet=args.alphabet, size=args.n)
logger.info('create output file: ' + args.output_file)
fout = open_file_or_stdout(args.output_file)
for i, seq in enumerate(sequences):
fout.write('>RANDOM_{:06d}:0\n'.format(i + 1))
fout.write(seq)
fout.write('\n')
fout.close()
def sequential_mapping(args):
from jinja2 import Template, Environment
from ioutils import open_file_or_stdout
rna_types = []
if len(args.rna_types) > 0:
rna_types = args.rna_types.split(',')
logger.info('load template: ' + args.template)
env = Environment(lstrip_blocks=True, trim_blocks=True)
with open(args.template, 'r') as f:
template = env.from_string(f.read())
with open_file_or_stdout(args.output_file) as f:
f.write(template.render(rna_types=rna_types, aligner=args.aligner))
def gtf_to_bed(args):
from ioutils import open_file_or_stdin, open_file_or_stdout
exon_feature = 'exon'
# use transcript_id attribute as key
transcripts = {}
logger.info('read input GTF file: ' + args.input_file)
for lineno, record in enumerate(read_gtf(args.input_file)):
c, attrs, line = record
if c[2] == exon_feature:
gene_id = attrs.get('gene_id')
if gene_id is None:
raise ValueError(
'gene_id attribute not found in GTF file {}:{}'.format(
args.input_file, lineno))
transcript_id = attrs.get('transcript_id')
if transcript_id is None:
raise ValueError(
'transcript_id attribute not found in GTF file {}:{}'.
format(args.input_file, lineno))
transcript = transcripts.get(transcript_id)
if transcript is None:
# new transcript
transcript = {
'chrom': c[0],
'strand': c[6],
'gene_id': gene_id,
'gene_name': attrs.get('gene_name', gene_id),
'transcript_name': attrs.get('transcript_name',
transcript_id),
'exons': []
}
transcripts[transcript_id] = transcript
# add a new exon
transcript['exons'].append((int(c[3]) - 1, int(c[4])))
fout = open_file_or_stdout(args.output_file)
bed_template = '{chrom}\t{start}\t{end}\t{name}\t0\t{strand}\t0\t0\t0\t{n_exons}\t{exon_sizes}\t{exon_starts}\n'
for transcript_id, transcript in transcripts.items():
# sort exons by start position
transcript['exons'] = sorted(transcript['exons'], key=lambda x: x[0])
transcript['n_exons'] = len(transcript['exons'])
transcript['start'] = transcript['exons'][0][0]
transcript['end'] = transcript['exons'][-1][1]
transcript['exon_starts'] = ','.join(
str(e[0] - transcript['start']) for e in transcript['exons'])
transcript['exon_sizes'] = ','.join(
str(e[1] - e[0]) for e in transcript['exons'])
transcript['name'] = '{gene_id}'.format(**transcript)
fout.write(bed_template.format(**transcript))
def transcript_counts(args):
import pysam
import numpy as np
from ioutils import open_file_or_stdout
from collections import defaultdict
logger.info('read input transcript BAM file: ' + args.input_file)
sam = pysam.AlignmentFile(args.input_file, "rb")
counts = defaultdict(int)
for read in sam:
counts[read.reference_name] += 1
logger.info('create output file: ' + args.output_file)
with open_file_or_stdout(args.output_file) as fout:
for key, val in counts.items():
fout.write('{}\t{}\n'.format(key, val))
def filter_circrna_reads(args):
import pysam
import numpy as np
from ioutils import open_file_or_stdout, open_file_or_stdin
from collections import defaultdict
from copy import deepcopy
logger.info('read input SAM file: ' + args.input_file)
fin = open_file_or_stdin(args.input_file)
sam_in = pysam.AlignmentFile(fin, "r")
if sam_in.header is None:
raise ValueError('requires SAM header to get junction positions')
# get junction positions (middle of the sequences)
junction_positions = {}
for sq in sam_in.header['SQ']:
junction_positions[sq['SN']] = sq['LN'] // 2
logger.info('create output SAM file: ' + args.output_file)
fout = open_file_or_stdout(args.output_file)
sam_out = pysam.AlignmentFile(fout, 'w', template=sam_in)
sam_filtered = None
if args.filtered_file is not None:
logger.info('create filtered SAM file: ' + args.filtered_file)
sam_filtered = pysam.AlignmentFile(args.filtered_file,
'w',
template=sam_in)
for read in sam_in:
filtered = False
if read.is_unmapped:
filtered = True
elif read.is_reverse:
filtered = True
else:
pos = junction_positions[read.reference_name]
if not (read.reference_start < pos <= read.reference_end):
filterd = True
if not filtered:
sam_out.write(read)
elif sam_filtered is not None:
sam_filtered.write(read)
fin.close()
fout.close()
if sam_filtered is not None:
sam_filtered.close()
def flagstat(args):
import pysam
from ioutils import open_file_or_stdin, open_file_or_stdout
logger.info('read input file: ' + args.input_file)
fin = open_file_or_stdin(args.input_file)
sam = pysam.AlignmentFile(fin, 'rb')
counts = [0] * 4096
for read in sam:
counts[read.flag] += 1
sam.close()
logger.info('create output file: ' + args.output_file)
with open_file_or_stdout(args.output_file) as fout:
fout.write('flag\tcounts\n')
for flag, count in enumerate(counts):
if count > 0:
fout.write('{}\t{}\n'.format(flag, count))
def extract_feature_sequence(args):
from pyfaidx import Fasta
from Bio.Seq import Seq
from ioutils import open_file_or_stdout
def pad_range(start, end, chrom_size, max_length):
if (end - start) >= max_length:
continue
padding_left = (max_length - (end - start)) // 2
new_start = max(0, start - padding_left)
new_end = min(new_start + max_length, chrom_size)
return new_start, new_end
fout = open_file_or_stdout(args.output_file)
fastas = {}
with open(args.input_file, 'r') as fin:
for lineno, line in enumerate(fin):
if lineno == 0:
continue
feature = line.split('\t')[0]
gene_id, gene_type, gene_name, domain_id, transcript_id, start, end = feature.split(
'|')
start = int(start)
end = int(end)
if gene_type == 'genomic':
gene_type = 'genome'
# load FASTA file
if gene_type not in fastas:
fastas[gene_type] = Fasta(
os.path.join(args.genome_dir, 'fasta', gene_type + '.fa'))
if gene_type == 'genome':
chrom, gstart, gend, strand = gene_id.split('_')
gstart = int(gstart)
gend = int(gend)
seq = fastas[gene_type][chrom][gstart:gend].seq
if strand == '-':
seq = str(Seq(seq).reverse_complement())
else:
seq = fastas[gene_type][transcript_id][start:end].seq
seq = seq.upper()
fout.write('>{}\n'.format(feature))
fout.write(seq)
fout.write('\n')
fout.close()
def extract_circrna_junction(args):
from Bio import SeqIO
from ioutils import open_file_or_stdin, open_file_or_stdout
anchor_size = args.anchor_size
logger.info('read sequence file: ' + args.input_file)
logger.info('create output file: ' + args.output_file)
fout = open_file_or_stdout(args.output_file)
with open_file_or_stdin(args.input_file) as fin:
for record in SeqIO.parse(fin, 'fasta'):
seq = str(record.seq)
if len(seq) < args.min_length:
continue
s = min(len(seq), anchor_size)
seq_id = record.id.split('|')[0]
fout.write('>{}\n'.format(seq_id))
fout.write(seq[-s:] + seq[:s])
fout.write('\n')
fout.close()
def pwm(args):
from utils import read_transfac
from utils import sample_pwm, random_sequences, embed_pwm
from ioutils import open_file_or_stdout
logger.info('read motif file: ' + args.input_file)
motif = read_transfac(args.input_file)
pwm = motif['PWM']/np.sum(motif['PWM'], axis=1, keepdims=True)
alphabet = motif['PO']
pwm_name = motif['ID']
motif_length = motif['PWM'].shape[0]
if args.length is None:
args.length = motif_length
if args.length < motif_length:
raise ValueError('cannot embed motif of length {} into sequence of length{}'.format(motif_length, args.length))
n_motif_seqs = args.n - round(args.bg_percent*0.01*args.n)
n_bg_seqs = round(args.bg_percent*0.01*args.n)
sequences, starts = embed_pwm(pwm, alphabet=alphabet, size=n_motif_seqs, length=args.length)
ends = starts + motif_length
if n_bg_seqs > 0:
sequences += random_sequences(args.length, alphabet=alphabet, size=n_bg_seqs)
starts = np.append(starts, np.zeros(n_bg_seqs, dtype=np.int32))
ends = np.append(ends, np.zeros(n_bg_seqs, dtype=np.int32))
labels = np.zeros(args.n, dtype=np.int32)
labels[:n_motif_seqs] = 1
# shuffle orders
logger.info('generate {} motif sequences and {} background sequences'.format(n_motif_seqs, n_bg_seqs))
seq_indices = np.random.permutation(args.n)
sequences = [sequences[i] for i in seq_indices]
labels = labels[seq_indices]
starts = starts[seq_indices]
ends = ends[seq_indices]
logger.info('create output file: ' + args.output_file)
fout = open_file_or_stdout(args.output_file)
for i, seq in enumerate(sequences):
fout.write('>{}_{:06d},{},{},{}\n'.format(pwm_name, i + 1, labels[i], starts[i], ends[i]))
fout.write(seq)
fout.write('\n')
fout.close()
def sample_pwm(args):
from utils import read_transfac
from utils import sample_pwm as _sample_pwm
from ioutils import open_file_or_stdout
logger.info('read motif file: ' + args.input_file)
motif = read_transfac(args.input_file)
pwm = motif['PWM'] / np.sum(motif['PWM'], axis=1, keepdims=True)
alphabet = motif['PO'].replace('T', 'U')
sequences = _sample_pwm(pwm, alphabet=motif['PO'], size=args.n)
pwm_name = motif['ID']
logger.info('create output file: ' + args.output_file)
fout = open_file_or_stdout(args.output_file)
for i, seq in enumerate(sequences):
fout.write('>{}_{:06d}\n'.format(pwm_name, i + 1))
fout.write(seq)
fout.write('\n')
fout.close()
def read_length_hist(args):
import pysam
import numpy as np
from ioutils import open_file_or_stdout
logger.info('read input BAM/SAM file: ' + args.input_file)
sam = pysam.AlignmentFile(args.input_file, "rb")
counts_ref = np.zeros(args.max_length, dtype=np.int64)
counts_query = np.zeros(args.max_length, dtype=np.int64)
max_length = args.max_length
for read in sam:
counts_query[read.query_length] += 1
counts_ref[min(read.reference_length, max_length - 1)] += 1
logger.info('create output file: ' + args.output_file)
with open_file_or_stdout(args.output_file) as f:
f.write('length\tquery\treference\n')
for i in range(args.max_length):
f.write('{}\t{}\t{}\n'.format(i, counts_query[i], counts_ref[i]))
def fix_gtf(args):
from ioutils import open_file_or_stdout
from collections import defaultdict
# strand of exons grouped by transcript_id
strands = defaultdict(list)
feature = args.feature
lines = []
logger.info('read GTF file: ' + args.input_file)
for c, attrs, line in read_gtf(args.input_file):
if c[2] in ('transcript', 'exon'):
transcript_id = attrs.get('transcript_id')
if transcript_id is None:
raise ValueError(
'transcript_id not found in GTF file at line {}'.format(
lineno))
lines.append((transcript_id, line))
else:
transcript_id = attrs.get('transcript_id')
if transcript_id is None:
raise ValueError(
'transcript_id not found in GTF file at line {}'.format(
lineno))
strands[transcript_id].append(c[6])
invalid_transcripts = set()
for transcript_id, strands_tx in strands.items():
strands_tx = set(strands_tx)
# remove transcripts without strand information
if '.' in strands_tx:
invalid_transcripts.add(transcript_id)
# remove transcripts with exon on different strands
elif len(strands_tx) != 1:
invalid_transcripts.add(transcript_id)
logger.info('number of transcripts: {}'.format(len(strands)))
logger.info('number of invalid transcripts: {}'.format(
len(invalid_transcripts)))
logger.info('write GTF file: ' + args.output_file)
with open_file_or_stdout(args.output_file) as fout:
for transcript_id, line in lines:
if transcript_id not in invalid_transcripts:
fout.write(line)
def calculate_clustering_score(args):
import numpy as np
import pandas as pd
from evaluation import uca_score, knn_score
from ioutils import open_file_or_stdout
logger.info('read feature matrix: ' + args.matrix)
X = pd.read_table(args.matrix, index_col=0, sep='\t')
if args.transpose:
logger.info('transpose feature matrix')
X = X.T
if args.use_log:
logger.info('apply log2 to feature matrix')
X = np.log2(X + 0.25)
logger.info('calculate clustering score')
if args.method == 'uca_score':
if args.sample_classes is None:
raise ValueError(
'argument --sample-classes is required for knn_score')
logger.info('read sample classes: ' + args.sample_classes)
sample_classes = pd.read_table(args.sample_classes,
index_col=0,
sep='\t').iloc[:, 0]
y = sample_classes[X.index.values].values
score = uca_score(X, y)
elif args.method == 'knn_score':
if args.batch is None:
raise ValueError('argument --batch is required for knn_score')
if args.batch_index is None:
raise ValueError(
'argument --batch-index is required for knn_score')
logger.info('read batch information: ' + args.batch)
batch = pd.read_table(args.batch, index_col=0,
sep='\t').iloc[:, args.batch_index - 1]
batch = batch[X.index.values].values
score = knn_score(X, batch)
else:
raise ValueError('unknown clustering score method: ' + args.method)
with open_file_or_stdout(args.output_file) as fout:
fout.write('{}'.format(score))
def render(args):
from jinja2 import Template, Environment, StrictUndefined
from ioutils import open_file_or_stdout
from collections import defaultdict
import yaml
import json
env = Environment(lstrip_blocks=True,
trim_blocks=True,
undefined=StrictUndefined)
with open(args.input_file, 'r') as f:
template = env.from_string(f.read())
config = yaml.load(open(args.config, 'r'))
config['tracks'] = dict(
sorted(config['tracks'].items(), key=lambda x: x[1]['order']))
config['tracks_json'] = json.dumps(config['tracks'], indent=4)
config['options_json'] = json.dumps(config['options'], indent=4)
with open_file_or_stdout(args.output_file) as f:
f.write(template.render(**config))
def calc_rpkm(args):
import pandas as pd
import numpy as np
from ioutils import open_file_or_stdin, open_file_or_stdout
matrix = pd.read_table(open_file_or_stdin(args.input_file),
index_col=0,
sep='\t')
feature_info = matrix.index.to_series().str.split('|', expand=True)
feature_info.columns = [
'gene_id', 'gene_type', 'gene_name', 'feature_id', 'transcript_id',
'start', 'end'
]
feature_info['start'] = feature_info['start'].astype('int')
feature_info['end'] = feature_info['end'].astype('int')
feature_info['length'] = feature_info['end'] - feature_info['start']
matrix = 1000.0 * matrix.div(feature_info['length'], axis=0)
matrix.to_csv(open_file_or_stdout(args.output_file),
index=True,
header=True,
sep='\t',
na_rep='NA')
def summarize_metrics(args):
import numpy as np
import h5py
import pandas as pd
from tqdm import tqdm
from ioutils import open_file_or_stdout
def parse_filename(filename):
d = {}
keymap = {
'd': 'dataset',
'w': 'window_size',
'b': 'binarization_method',
'm': 'model',
'i': 'cv_index'
}
for v in filename.split(','):
c = v.split('=')
if len(c) == 1:
d[keymap[c[0]]] = None
elif len(c) == 2:
d[keymap[c[0]]] = c[1]
else:
raise ValueError('cannot parse filename: ' + filename)
return d
logger.info('read input directory: ' + args.input_dir)
summary = []
for input_file in os.listdir(args.input_dir):
d = parse_filename(input_file)
with h5py.File(os.path.join(args.input_dir, input_file), 'r') as f:
d['accuracy'] = f['metrics/accuracy'][()]
d['roc_auc'] = f['metrics/roc_auc'][()]
summary.append(d)
summary = pd.DataFrame.from_records(summary)
with open_file_or_stdout(args.output_file) as fout:
summary.to_csv(fout, sep='\t', index=False)
def summarize_metrics_by_rna(args):
import numpy as np
import h5py
import pandas as pd
from tqdm import tqdm
from ioutils import open_file_or_stdout
def parse_filename(filename):
d = {}
keymap = {
'd': 'dataset',
'w': 'window_size',
'b': 'binarization_method',
'm': 'model',
'i': 'cv_index'
}
for v in filename.split(','):
c = v.split('=')
if len(c) == 1:
d[keymap[c[0]]] = None
elif len(c) == 2:
d[keymap[c[0]]] = c[1]
else:
raise ValueError('cannot parse filename: ' + filename)
return d
logger.info('read input directory: ' + args.input_dir)
summary = []
for input_file in os.listdir(args.input_dir):
d = parse_filename(input_file)
metrics = pd.read_table(os.path.join(args.input_dir, input_file))
for key, value in d.items():
metrics[key] = value
summary.append(metrics)
summary = pd.concat(summary, axis=0)
with open_file_or_stdout(args.output_file) as fout:
summary.to_csv(fout, sep='\t', index=False)
def extract_gene(args):
from ioutils import open_file_or_stdout
feature = args.feature
genes = {}
logger.info('read GTF file: ' + args.input_file)
for c, attrs, line in read_gtf(args.input_file):
if (feature is not None) and (c[2] != feature):
continue
gene_id = attrs.get('gene_id')
gene = genes.get(gene_id)
if gene is None:
gene = [c[0], int(c[3]) - 1, int(c[4]), gene_id, 0, c[6]]
genes[gene_id] = gene
else:
gene[1] = min(gene[1], int(c[3]) - 1)
gene[2] = max(gene[2], int(c[4]))
logger.info('number of genes: {}'.format(len(genes)))
logger.info('write BED file: ' + args.output_file)
with open_file_or_stdout(args.output_file) as fout:
for gene_id, gene in genes.items():
fout.write('\t'.join(map(str, gene)))
fout.write('\n')