Example #1
0
    def run_ptp(self, jp):
        full_aln = SeqGroup(self.epa_alignment)
        species_list = epa_2_ptp(epa_jp=jp,
                                 ref_jp=self.refjson,
                                 full_alignment=full_aln,
                                 min_lw=0.5,
                                 debug=self.cfg.debug)

        self.cfg.log.debug("Species clusters:")

        if fout:
            fo2 = open(fout + ".species", "w")
        else:
            fo2 = None

        for sp_cluster in species_list:
            translated_taxa = []
            for taxon in sp_cluster:
                origin_taxon_name = EpacConfig.strip_query_prefix(taxon)
                translated_taxa.append(origin_taxon_name)
            s = ",".join(translated_taxa)
            if fo2:
                fo2.write(s + "\n")
            self.cfg.log.debug(s)

        if fo2:
            fo2.close()
    def classify(self, query_fname, fout = None, method = "1", minlw = 0.0, pv = 0.02, minp = 0.9, ptp = False):
        if self.jplace_fname:
            jp = EpaJsonParser(self.jplace_fname)
        else:        
            self.checkinput(query_fname, minp)
            raxml = RaxmlWrapper(config)
            reftree_fname = self.cfg.tmp_fname("ref_%NAME%.tre")
            self.refjson.get_raxml_readable_tree(reftree_fname)
            optmod_fname = self.cfg.tmp_fname("%NAME%.opt")
            self.refjson.get_binary_model(optmod_fname)
            job_name = self.cfg.subst_name("epa_%NAME%")

            reftree_str = self.refjson.get_raxml_readable_tree()
            reftree = Tree(reftree_str)

            self.reftree_size = len(reftree.get_leaves())

            # IMPORTANT: set EPA heuristic rate based on tree size!                
            self.cfg.resolve_auto_settings(self.reftree_size)
            # If we're loading the pre-optimized model, we MUST set the same rate het. mode as in the ref file        
            if self.cfg.epa_load_optmod:
                self.cfg.raxml_model = self.refjson.get_ratehet_model()

            reduced_align_fname = raxml.reduce_alignment(self.epa_alignment)

            jp = raxml.run_epa(job_name, reduced_align_fname, reftree_fname, optmod_fname)
        
        placements = jp.get_placement()
        
        if fout:
            fo = open(fout, "w")
        else:
            fo = None
        
        output2 = ""
        for place in placements:
            output = None
            taxon_name = place["n"][0]
            origin_taxon_name = EpacConfig.strip_query_prefix(taxon_name)
            edges = place["p"]
#            edges = self.erlang_filter(edges, p = pv)
            if len(edges) > 0:
                ranks, lws = self.classify_helper.classify_seq(edges, method, minlw)
                
                isnovo = self.novelty_check(place_edge = str(edges[0][0]), ranks =ranks, lws = lws, minlw = minlw)
                rankout = self.print_ranks(ranks, lws, minlw)
                
                if rankout == None:
                    output2 = output2 + origin_taxon_name+ "\t\t\t?\n"
                else:
                    output = "%s\t%s\t" % (origin_taxon_name, self.print_ranks(ranks, lws, minlw))
                    if isnovo: 
                        output += "*"
                    else:
                        output +="o"
                    if self.cfg.verbose:
                        print(output) 
                    if fo:
                        fo.write(output + "\n")
            else:
                output2 = output2 + origin_taxon_name+ "\t\t\t?\n"
        
        if os.path.exists(self.noalign):
            with open(self.noalign) as fnoa:
                lines = fnoa.readlines()
                for line in lines:
                    taxon_name = line.strip()[1:]
                    origin_taxon_name = EpacConfig.strip_query_prefix(taxon_name)
                    output = "%s\t\t\t?" % origin_taxon_name
                    if self.cfg.verbose:
                        print(output)
                    if fo:
                        fo.write(output + "\n")
        
        if self.cfg.verbose:
            print(output2)
        
        if fo:
            fo.write(output2)
            fo.close()

        #############################################
        #
        # EPA-PTP species delimitation
        #
        #############################################
        if ptp:
            full_aln = SeqGroup(self.epa_alignment)
            species_list = epa_2_ptp(epa_jp = jp, ref_jp = self.refjson, full_alignment = full_aln, min_lw = 0.5, debug = self.cfg.debug)
            
            if self.cfg.verbose:
                print "Species clusters:"

            if fout:
                fo2 = open(fout+".species", "w")
            else:
                fo2 = None

            for sp_cluster in species_list:
                translated_taxa = []
                for taxon in sp_cluster:
                    origin_taxon_name = EpacConfig.strip_query_prefix(taxon)
                    translated_taxa.append(origin_taxon_name)
                s = ",".join(translated_taxa)
                if fo2:
                    fo2.write(s + "\n")
                if self.cfg.verbose:
                    print s

            if fo2:
                fo2.close()
        #############################################
        
        if not self.jplace_fname:
            if not self.cfg.debug:
                raxml.cleanup(job_name)
                FileUtils.remove_if_exists(reduced_align_fname)
                FileUtils.remove_if_exists(reftree_fname)
                FileUtils.remove_if_exists(optmod_fname)
Example #3
0
    def classify(self, query_fname, minp = 0.9, ptp = False):
        if self.jplace_fname:
            jp = EpaJsonParser(self.jplace_fname)
        else:        
            self.checkinput(query_fname, minp)

            self.cfg.log.info("Running RAxML-EPA to place %d query sequences...\n" % self.query_count)
            raxml = RaxmlWrapper(config)
            reftree_fname = self.cfg.tmp_fname("ref_%NAME%.tre")
            self.refjson.get_raxml_readable_tree(reftree_fname)
            optmod_fname = self.cfg.tmp_fname("%NAME%.opt")
            self.refjson.get_binary_model(optmod_fname)
            job_name = self.cfg.subst_name("epa_%NAME%")

            reftree_str = self.refjson.get_raxml_readable_tree()
            reftree = Tree(reftree_str)

            self.reftree_size = len(reftree.get_leaves())

            # IMPORTANT: set EPA heuristic rate based on tree size!                
            self.cfg.resolve_auto_settings(self.reftree_size)
            # If we're loading the pre-optimized model, we MUST set the same rate het. mode as in the ref file        
            if self.cfg.epa_load_optmod:
                self.cfg.raxml_model = self.refjson.get_ratehet_model()

            reduced_align_fname = raxml.reduce_alignment(self.epa_alignment)

            jp = raxml.run_epa(job_name, reduced_align_fname, reftree_fname, optmod_fname)
            
            raxml.copy_epa_jplace(job_name, self.out_jplace_fname, move=True)
        
        self.cfg.log.info("Assigning taxonomic labels based on EPA placements...\n")
 
        placements = jp.get_placement()
        
        if self.out_assign_fname:
            fo = open(self.out_assign_fname, "w")
        else:
            fo = None
        
        noassign_list = []
        for place in placements:
            taxon_name = place["n"][0]
            origin_taxon_name = EpacConfig.strip_query_prefix(taxon_name)
            edges = place["p"]
            if len(edges) > 0:
                ranks, lws = self.classify_helper.classify_seq(edges)
                
                isnovo = self.novelty_check(place_edge = str(edges[0][0]), ranks=ranks, lws=lws)
                rankout = self.print_ranks(ranks, lws, self.cfg.min_lhw)
                
                if rankout == None:
                    noassign_list.append(origin_taxon_name)
                else:
                    output = "%s\t%s\t" % (origin_taxon_name, rankout)
                    if isnovo: 
                        output += "*"
                    else:
                        output +="o"
                    if self.cfg.verbose:
                        print(output) 
                    if fo:
                        fo.write(output + "\n")
            else:
                noassign_list.append(origin_taxon_name)
        
        if os.path.exists(self.noalign):
            with open(self.noalign) as fnoa:
                lines = fnoa.readlines()
                for line in lines:
                    taxon_name = line.strip()[1:]
                    origin_taxon_name = EpacConfig.strip_query_prefix(taxon_name)
                    noassign_list.append(origin_taxon_name)
                        
        for taxon_name in noassign_list:
            output = "%s\t\t\t?" % origin_taxon_name
            if self.cfg.verbose:
                print(output)
            if fo:
                fo.write(output + "\n")
        
        if fo:
            fo.close()

        #############################################
        #
        # EPA-PTP species delimitation
        #
        #############################################
        if ptp:
            full_aln = SeqGroup(self.epa_alignment)
            species_list = epa_2_ptp(epa_jp = jp, ref_jp = self.refjson, full_alignment = full_aln, min_lw = 0.5, debug = self.cfg.debug)
            
            self.cfg.log.debug("Species clusters:")
 
            if fout:
                fo2 = open(fout+".species", "w")
            else:
                fo2 = None

            for sp_cluster in species_list:
                translated_taxa = []
                for taxon in sp_cluster:
                    origin_taxon_name = EpacConfig.strip_query_prefix(taxon)
                    translated_taxa.append(origin_taxon_name)
                s = ",".join(translated_taxa)
                if fo2:
                    fo2.write(s + "\n")
                self.cfg.log.debug(s)

            if fo2:
                fo2.close()