X-Git-Url: https://git.donarmstrong.com/?p=mothur.git;a=blobdiff_plain;f=knn.cpp;h=81b21b265785c2f8a83392ee52e7aeffbc9d4370;hp=64b5b3a288db8ce2f1d6da7e08af90bd8e26e613;hb=df7e3ff9f68ef157b0328a2d353c3258c5d45d89;hpb=6f4b9401f7deb8aaf0d87659298308f4138cc3b0

diff --git a/knn.cpp b/knn.cpp
index 64b5b3a..81b21b2 100644
--- a/knn.cpp
+++ b/knn.cpp
@@ -10,9 +10,12 @@
 #include "knn.h"
 
 /**************************************************************************************************/
-Knn::Knn(string tfile, string tempFile, string method, int kmerSize, float gapOpen, float gapExtend, float match, float misMatch, int n) 
-: Classify(), num(n)  {
+Knn::Knn(string tfile, string tempFile, string method, int kmerSize, float gapOpen, float gapExtend, float match, float misMatch, int n, int tid) 
+: Classify(), num(n), search(method) {
 	try {
+		threadID = tid;
+        shortcuts = true;
+		
 		//create search database and names vector
 		generateDatabaseAndNames(tfile, tempFile, method, kmerSize, gapOpen, gapExtend, match, misMatch);
 	}
@@ -22,13 +25,40 @@ Knn::Knn(string tfile, string tempFile, string method, int kmerSize, float gapOp
 	}
 }
 /**************************************************************************************************/
+void Knn::setDistName(string s) {
+	try {
+		outDistName = s;
+		ofstream outDistance;
+		m->openOutputFile(outDistName, outDistance);
+		outDistance << "Name\tBestMatch\tDistance" << endl;
+		outDistance.close();
+	}
+	catch(exception& e) {
+		m->errorOut(e, "Knn", "setDistName");
+		exit(1);
+	}
+}
+/**************************************************************************************************/
+Knn::~Knn() {
+	try {
+		 delete phyloTree; 
+		 if (database != NULL) {  delete database; }
+	}
+	catch(exception& e) {
+		m->errorOut(e, "Knn", "~Knn");
+		exit(1);
+	}
+}
+/**************************************************************************************************/
 string Knn::getTaxonomy(Sequence* seq) {
 	try {
 		string tax;
 		
 		//use database to find closest seq
 		vector<int> closest = database->findClosestSequences(seq, num);
-		
+	
+		if (search == "distance") { ofstream outDistance; m->openOutputFileAppend(outDistName, outDistance); outDistance << seq->getName() << '\t' << database->getName(closest[0]) << '\t' << database->getSearchScore() << endl; outDistance.close();  }
+	
 		if (m->control_pressed) { return tax; }
 
 		vector<string> closestNames;
@@ -43,11 +73,11 @@ string Knn::getTaxonomy(Sequence* seq) {
 		}
 		
 		if (closestNames.size() == 0) {
-			m->mothurOut("Error: All the matches for sequence " + seq->getName() + " have been eliminated. " + seq->getName() + " will be disregarded."); m->mothurOutEndLine();
-			tax = "bad seq";
+			m->mothurOut("Error: All the matches for sequence " + seq->getName() + " have been eliminated. "); m->mothurOutEndLine();
+			tax = "unknown;";
 		}else{
 			tax = findCommonTaxonomy(closestNames);
-			if (tax == "") { m->mothurOut("There are no common levels for sequence " + seq->getName() + ". " + seq->getName() + " will be disregarded."); m->mothurOutEndLine(); tax = "bad seq"; }
+			if (tax == "") { m->mothurOut("There are no common levels for sequence " + seq->getName() + ". "); m->mothurOutEndLine(); tax = "unknown;"; }
 		}
 		
 		simpleTax = tax;
@@ -61,7 +91,7 @@ string Knn::getTaxonomy(Sequence* seq) {
 /**************************************************************************************************/
 string Knn::findCommonTaxonomy(vector<string> closest)  {
 	try {
-		vector< vector<string> > taxons;  //taxon[0] = vector of taxonomy info for closest[0].
+		/*vector< vector<string> > taxons;  //taxon[0] = vector of taxonomy info for closest[0].
 										//so if closest[0] taxonomy is Bacteria;Alphaproteobacteria;Rhizobiales;Azorhizobium_et_rel.;Methylobacterium_et_rel.;Bosea;
 										//taxon[0][0] = Bacteria, taxon[0][1] = Alphaproteobacteria....
 										
@@ -72,6 +102,7 @@ string Knn::findCommonTaxonomy(vector<string> closest)  {
 			if (m->control_pressed) { return "control"; }
 		
 			string tax = taxonomy[closest[i]];  //we know its there since we checked in getTaxonomy
+			cout << tax << endl;
 		
 			taxons[i] = parseTax(tax);
 		
@@ -99,9 +130,54 @@ string Knn::findCommonTaxonomy(vector<string> closest)  {
 				}
 				break;
 			}
+		}*/
+		
+		string conTax;
+		
+		//create a tree containing sequences from this bin
+		PhyloTree* p = new PhyloTree();
+		
+		for (int i = 0; i < closest.size(); i++) {
+			p->addSeqToTree(closest[i], taxonomy[closest[i]]);
 		}
-	
-		return common;
+		
+		//build tree
+		p->assignHeirarchyIDs(0);
+		
+		TaxNode currentNode = p->get(0);
+		
+		//at each level
+		while (currentNode.children.size() != 0) { //you still have more to explore
+			
+			TaxNode bestChild;
+			int bestChildSize = 0;
+			
+			//go through children
+			for (map<string, int>::iterator itChild = currentNode.children.begin(); itChild != currentNode.children.end(); itChild++) {
+				
+				TaxNode temp = p->get(itChild->second);
+				
+				//select child with largest accessions - most seqs assigned to it
+				if (temp.accessions.size() > bestChildSize) {
+					bestChild = p->get(itChild->second);
+					bestChildSize = temp.accessions.size();
+				}
+				
+			}
+			
+			if (bestChildSize == closest.size()) { //if yes, add it
+				conTax += bestChild.name + ";";
+			}else{ //if no, quit
+				break;
+			}
+			
+			//move down a level
+			currentNode = bestChild;
+		}
+		
+		delete p;	
+		
+		return conTax;
 	}
 	catch(exception& e) {
 		m->errorOut(e, "Knn", "findCommonTaxonomy");