def test_xml(self): pm = ProbFromQV(op.join(MNT_DATA, CCS_XML), fasta_filename=NFL_FASTA) qvs = [] for read_id in _get_read_ids(): qvs.append(pm.get(read_id, "InsertionQV")) dqv = pm.get(READ_ID, "DeletionQV") self.assertEqual("%.5f" % dqv[0], "0.01995") #print dqv[100] self.assertEqual(len(qvs), 251)
def set_probqv_from_ccs(ccs_fofn, fasta_filename): """Set probability and quality values from ccs.h5, return probqv, log_info.""" assert ccs_fofn is not None and fasta_filename is not None start_t = time.time() probqv = ProbFromQV(input_fofn=ccs_fofn, fasta_filename=fasta_filename) msg = "Loading probabilities and QV from " + \ "{f} + {c} took {t} sec.".format(f=fasta_filename, c=ccs_fofn, t=(time.time()-start_t)) return probqv, msg
def build_uc_from_partial_daligner(input_fasta, ref_fasta, out_pickle, ccs_fofn=None, done_filename=None, use_finer_qv=False, cpus=24, no_qv_or_aln_checking=True, tmp_dir=None): """ Given an input_fasta file of non-full-length (partial) reads and (unpolished) consensus isoforms sequences in ref_fasta, align reads to consensus isoforms using BLASR, and then build up a mapping between consensus isoforms and reads (i.e., assign reads to isoforms). Finally, save {isoform_id: [read_ids], nohit: set(no_hit_read_ids)} to an output pickle file. ccs_fofn --- If None, assume no quality value is available, otherwise, use QV from ccs_fofn. tmp_dir - where to save intermediate files such as dazz files. if None, writer dazz files to the same directory as query/target. """ input_fasta = realpath(input_fasta) ref_fasta = realpath(ref_fasta) out_pickle = realpath(out_pickle) output_dir = op.dirname(out_pickle) ice_opts = IceOptions() ice_opts.detect_cDNA_size(ref_fasta) # ice_partial is already being called through qsub, so run everything local! runner = DalignerRunner(query_filename=input_fasta, target_filename=ref_fasta, is_FL=False, same_strand_only=False, query_converted=False, target_converted=True, dazz_dir=tmp_dir, script_dir=op.join(output_dir, "script"), use_sge=False, sge_opts=None, cpus=cpus) runner.run(min_match_len=300, output_dir=output_dir, sensitive_mode=ice_opts.sensitive_mode) if no_qv_or_aln_checking: # not using QVs or alignment checking! # this probqv is just a DUMMY to pass to daligner_against_ref, which won't be used logging.info("Not using QV for partial_uc. Loading dummy QV.") probqv = ProbFromModel(.01, .07, .06) else: if ccs_fofn is None: logging.info("Loading probability from model (0.01,0.07,0.06)") probqv = ProbFromModel(.01, .07, .06) else: start_t = time.time() if use_finer_qv: probqv = ProbFromQV(input_fofn=ccs_fofn, fasta_filename=input_fasta) logging.info("Loading QVs from %s + %s took %s secs", ccs_fofn, input_fasta, time.time() - start_t) else: input_fastq = input_fasta[:input_fasta.rfind('.')] + '.fastq' logging.info("Converting %s + %s --> %s", input_fasta, ccs_fofn, input_fastq) ice_fa2fq(input_fasta, ccs_fofn, input_fastq) probqv = ProbFromFastq(input_fastq) logging.info("Loading QVs from %s took %s secs", input_fastq, time.time() - start_t) logging.info("Calling dalign_against_ref ...") partial_uc = {} # Maps each isoform (cluster) id to a list of reads # which can map to the isoform seen = set() # reads seen logging.info("Building uc from DALIGNER hits.") for la4ice_filename in runner.la4ice_filenames: start_t = time.time() hitItems = daligner_against_ref( query_dazz_handler=runner.query_dazz_handler, target_dazz_handler=runner.target_dazz_handler, la4ice_filename=la4ice_filename, is_FL=False, sID_starts_with_c=True, qver_get_func=probqv.get_smoothed, qvmean_get_func=probqv.get_mean, ece_penalty=1, ece_min_len=20, same_strand_only=False, no_qv_or_aln_checking=no_qv_or_aln_checking) for h in hitItems: if h.ece_arr is not None: if h.cID not in partial_uc: partial_uc[h.cID] = set() partial_uc[h.cID].add(h.qID) seen.add(h.qID) logging.info("processing %s took %s sec", la4ice_filename, str(time.time() - start_t)) for k in partial_uc: partial_uc[k] = list(partial_uc[k]) allhits = set(r.name.split()[0] for r in ContigSetReaderWrapper(input_fasta)) logging.info("Counting reads with no hit.") nohit = allhits.difference(seen) logging.info("Dumping uc to a pickle: %s.", out_pickle) with open(out_pickle, 'w') as f: if out_pickle.endswith(".pickle"): dump({'partial_uc': partial_uc, 'nohit': nohit}, f) elif out_pickle.endswith(".json"): f.write(json.dumps({'partial_uc': partial_uc, 'nohit': nohit})) else: raise IOError("Unrecognized extension: %s" % out_pickle) done_filename = realpath(done_filename) if done_filename is not None \ else out_pickle + '.DONE' logging.debug("Creating %s.", done_filename) touch(done_filename) # remove all the .las and .las.out filenames runner.clean_run()
def build_uc_from_partial(input_fasta, ref_fasta, out_pickle, ccs_fofn=None, done_filename=None, blasr_nproc=12, tmp_dir=None): """ Given an input_fasta file of non-full-length (partial) reads and (unpolished) consensus isoforms sequences in ref_fasta, align reads to consensus isoforms using BLASR, and then build up a mapping between consensus isoforms and reads (i.e., assign reads to isoforms). Finally, save {isoform_id: [read_ids], nohit: set(no_hit_read_ids)} to an output pickle file. ccs_fofn --- If None, assume no quality value is available, otherwise, use QV from ccs_fofn. blasr_nproc --- equivalent to blasr -nproc, number of CPUs to use """ input_fasta = _get_fasta_path(realpath(input_fasta)) m5_file = os.path.basename(input_fasta) + ".blasr" if tmp_dir is not None: m5_file = op.join(tmp_dir, m5_file) out_pickle = realpath(out_pickle) cmd = "blasr {i} ".format(i=real_upath(input_fasta)) + \ "{r} --bestn 5 ".format(r=real_upath(_get_fasta_path(ref_fasta))) + \ "--nproc {n} -m 5 ".format(n=blasr_nproc) + \ "--maxScore -1000 --minPctIdentity 85 " + \ "--out {o} ".format(o=real_upath(m5_file)) + \ "1>/dev/null 2>/dev/null" execute(cmd) if ccs_fofn is None: logging.info("Loading probability from model") probqv = ProbFromModel(.01, .07, .06) else: # FIXME this will not work with current CCS bam output, which lacks # QV pulse features required - this is handled via a workaround in # pbtranscript.tasks.ice_partial logging.info("Loading probability from QV in %s", ccs_fofn) probqv = ProbFromQV(input_fofn=ccs_fofn, fasta_filename=input_fasta) logging.info("Calling blasr_against_ref ...") hitItems = blasr_against_ref(output_filename=m5_file, is_FL=False, sID_starts_with_c=True, qver_get_func=probqv.get_smoothed, qvmean_get_func=probqv.get_mean, ece_penalty=1, ece_min_len=10, same_strand_only=False) partial_uc = {} # Maps each isoform (cluster) id to a list of reads # which can map to the isoform seen = set() # reads seen logging.info("Building uc from BLASR hits.") for h in hitItems: if h.ece_arr is not None: if h.cID not in partial_uc: partial_uc[h.cID] = set() partial_uc[h.cID].add(h.qID) seen.add(h.qID) for k in partial_uc: partial_uc[k] = list(partial_uc[k]) allhits = set(r.name.split()[0] for r in ContigSetReaderWrapper(input_fasta)) logging.info("Counting reads with no hit.") nohit = allhits.difference(seen) logging.info("Dumping uc to a pickle: %s.", out_pickle) with open(out_pickle, 'w') as f: if out_pickle.endswith(".pickle"): dump({'partial_uc': partial_uc, 'nohit': nohit}, f) elif out_pickle.endswith(".json"): f.write(json.dumps({'partial_uc': partial_uc, 'nohit': nohit})) else: raise IOError("Unrecognized extension: %s" % out_pickle) os.remove(m5_file) done_filename = realpath(done_filename) if done_filename is not None \ else out_pickle + '.DONE' logging.debug("Creating %s.", done_filename) touch(done_filename)