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+/*
+ *  mantelcommand.cpp
+ *  mothur
+ *
+ *  Created by westcott on 2/9/11.
+ *  Copyright 2011 Schloss Lab. All rights reserved.
+ *
+ */
+
+#include "mantelcommand.h"
+#include "readphylipvector.h"
+
+
+//**********************************************************************************************************************
+vector<string> MantelCommand::setParameters(){ 
+       try {
+               CommandParameter pphylip1("phylip1", "InputTypes", "", "", "none", "none", "none",false,true); parameters.push_back(pphylip1);
+               CommandParameter pphylip2("phylip2", "InputTypes", "", "", "none", "none", "none",false,true); parameters.push_back(pphylip2);
+               CommandParameter piters("iters", "Number", "", "1000", "", "", "",false,false); parameters.push_back(piters);
+               CommandParameter pmethod("method", "Multiple", "pearson-spearman-kendall", "pearson", "", "", "",false,false); parameters.push_back(pmethod);
+               CommandParameter pinputdir("inputdir", "String", "", "", "", "", "",false,false); parameters.push_back(pinputdir);
+               CommandParameter poutputdir("outputdir", "String", "", "", "", "", "",false,false); parameters.push_back(poutputdir);
+               
+               vector<string> myArray;
+               for (int i = 0; i < parameters.size(); i++) {   myArray.push_back(parameters[i].name);          }
+               return myArray;
+       }
+       catch(exception& e) {
+               m->errorOut(e, "MantelCommand", "setParameters");
+               exit(1);
+       }
+}
+//**********************************************************************************************************************
+string MantelCommand::getHelpString(){ 
+       try {
+               string helpString = "";
+               helpString += "Sokal, R. R., & Rohlf, F. J. (1995). Biometry, 3rd edn. New York: Freeman.\n";
+               helpString += "The mantel command reads two distance matrices and calculates the mantel correlation coefficient.\n";
+               helpString += "The mantel command parameters are phylip1, phylip2, iters and method.  The phylip1 and phylip2 parameters are required.  Matrices must be the same size and contain the same names.\n";
+               helpString += "The method parameter allows you to select what method you would like to use. Options are pearson, spearman and kendall. Default=pearson.\n";
+               helpString += "The iters parameter allows you to set number of randomization for the P value.  The default is 1000. \n";
+               helpString += "The mantel command should be in the following format: mantel(phylip1=veg.dist, phylip2=env.dist).\n";
+               helpString += "The mantel command outputs a .mantel file.\n";
+               helpString += "Note: No spaces between parameter labels (i.e. phylip1), '=' and parameters (i.e. veg.dist).\n";
+               return helpString;
+       }
+       catch(exception& e) {
+               m->errorOut(e, "MantelCommand", "getHelpString");
+               exit(1);
+       }
+}
+//**********************************************************************************************************************
+MantelCommand::MantelCommand(){        
+       try {
+               abort = true; calledHelp = true;
+               setParameters();
+               vector<string> tempOutNames;
+               outputTypes["mantel"] = tempOutNames;
+       }
+       catch(exception& e) {
+               m->errorOut(e, "MantelCommand", "MantelCommand");
+               exit(1);
+       }
+}
+//**********************************************************************************************************************
+MantelCommand::MantelCommand(string option)  {
+       try {
+               abort = false; calledHelp = false;   
+               
+               //allow user to run help
+               if(option == "help") { help(); abort = true; calledHelp = true; }
+               else if(option == "citation") { citation(); abort = true; calledHelp = true;}
+               
+               else {
+                       vector<string> myArray = setParameters();
+                       
+                       OptionParser parser(option);
+                       map<string, string> parameters = parser.getParameters();
+                       
+                       ValidParameters validParameter;
+                       map<string, string>::iterator it;
+                       
+                       //check to make sure all parameters are valid for command
+                       for (it = parameters.begin(); it != parameters.end(); it++) { 
+                               if (validParameter.isValidParameter(it->first, myArray, it->second) != true) {  abort = true;  }
+                       }
+                       
+                       vector<string> tempOutNames;
+                       outputTypes["mantel"] = tempOutNames;
+                       
+                       //if the user changes the input directory command factory will send this info to us in the output parameter 
+                       string inputDir = validParameter.validFile(parameters, "inputdir", false);              
+                       if (inputDir == "not found"){   inputDir = "";          }
+                       else {
+                               string path;
+                               it = parameters.find("phylip1");
+                               //user has given a template file
+                               if(it != parameters.end()){ 
+                                       path = m->hasPath(it->second);
+                                       //if the user has not given a path then, add inputdir. else leave path alone.
+                                       if (path == "") {       parameters["phylip1"] = inputDir + it->second;          }
+                               }
+                               
+                               it = parameters.find("phylip2");
+                               //user has given a template file
+                               if(it != parameters.end()){ 
+                                       path = m->hasPath(it->second);
+                                       //if the user has not given a path then, add inputdir. else leave path alone.
+                                       if (path == "") {       parameters["phylip2"] = inputDir + it->second;          }
+                               }
+                       }
+                       
+                       
+                       //check for required parameters
+                       phylipfile1 = validParameter.validFile(parameters, "phylip1", true);
+                       if (phylipfile1 == "not open") { phylipfile1 = ""; abort = true; }
+                       else if (phylipfile1 == "not found") { phylipfile1 = ""; m->mothurOut("phylip1 is a required parameter for the mantel command."); m->mothurOutEndLine(); abort = true;  }       
+                       
+                       phylipfile2 = validParameter.validFile(parameters, "phylip2", true);
+                       if (phylipfile2 == "not open") { phylipfile2 = ""; abort = true; }
+                       else if (phylipfile2 == "not found") { phylipfile2 = ""; m->mothurOut("phylip2 is a required parameter for the mantel command."); m->mothurOutEndLine(); abort = true;  }       
+                       
+                       outputDir = validParameter.validFile(parameters, "outputdir", false);           if (outputDir == "not found"){  outputDir = m->hasPath(phylipfile1);    }
+                       
+                       method = validParameter.validFile(parameters, "method", false);         if (method == "not found"){     method = "pearson";             }
+                       
+                       string temp = validParameter.validFile(parameters, "iters", false);                     if (temp == "not found") { temp = "1000"; }
+                       m->mothurConvert(temp, iters);
+                       
+                       if ((method != "pearson") && (method != "spearman") && (method != "kendall")) { m->mothurOut(method + " is not a valid method. Valid methods are pearson, spearman, and kendall."); m->mothurOutEndLine(); abort = true; }
+               }
+       }
+       catch(exception& e) {
+               m->errorOut(e, "MantelCommand", "MantelCommand");               
+               exit(1);
+       }
+}
+//**********************************************************************************************************************
+
+int MantelCommand::execute(){
+       try {
+               
+               if (abort == true) { if (calledHelp) { return 0; }  return 2;   }
+               
+               /***************************************************/
+               //    reading distance files                                       //
+               /***************************************************/
+               
+               //read phylip1
+               ReadPhylipVector readMatrix(phylipfile1);
+               vector< vector<double> > matrix1;
+               vector<string> names1 = readMatrix.read(matrix1);
+               
+               if (m->control_pressed) { return 0; }
+               
+               //read phylip2
+               ReadPhylipVector readMatrix2(phylipfile2);
+               vector< vector<double> > matrix2;
+               vector<string> names2 = readMatrix2.read(matrix2);
+               
+               if (m->control_pressed) { return 0; }
+               
+               //make sure matrix2 and matrix1 are in the same order
+               if (names1 == names2) { //then everything is in same order and same size
+               }else if (names1.size() != names2.size()) { //wrong size no need to order, abort
+                       m->mothurOut("[ERROR]: distance matrices are not the same size, aborting."); m->mothurOutEndLine();
+                       m->control_pressed = true;
+               }else { //sizes are the same, but either the names are different or they are in different order
+                       m->mothurOut("[WARNING]: Names do not match between distance files. Comparing based on order in files."); m->mothurOutEndLine();
+               }       
+               
+               if (m->control_pressed) { return 0; }
+               
+               /***************************************************/
+               //    calculating mantel and signifigance                  //
+               /***************************************************/
+               
+               //calc mantel coefficient
+               LinearAlgebra linear;
+               double mantel = 0.0;
+               if (method == "pearson")                {  mantel = linear.calcPearson(matrix1, matrix2);       }
+               else if (method == "spearman")  {  mantel = linear.calcSpearman(matrix1, matrix2);      }
+               else if (method == "kendall")   {  mantel = linear.calcKendall(matrix1, matrix2);       }
+               
+               
+               //calc signifigance
+               int count = 0;
+               for (int i = 0; i < iters; i++) {
+                       
+                       if (m->control_pressed) { return 0; }
+                       
+                       //randomize matrix2
+                       vector< vector<double> > matrix2Copy = matrix2;
+                       random_shuffle(matrix2Copy.begin(), matrix2Copy.end());
+               
+                       //calc random mantel
+                       double randomMantel = 0.0;
+                       if (method == "pearson")                {  randomMantel = linear.calcPearson(matrix1, matrix2Copy);     }
+                       else if (method == "spearman")  {  randomMantel = linear.calcSpearman(matrix1, matrix2Copy);    }
+                       else if (method == "kendall")   {  randomMantel = linear.calcKendall(matrix1, matrix2Copy);     }
+                       
+                       if (randomMantel >= mantel) { count++; }
+               }
+               
+               double pValue = count / (float) iters;
+               
+               if (m->control_pressed) { return 0; }
+               
+               string outputFile = outputDir + m->getRootName(m->getSimpleName(phylipfile1)) + "mantel";
+               outputNames.push_back(outputFile); outputTypes["mantel"].push_back(outputFile);
+               ofstream out;
+               
+               m->openOutputFile(outputFile, out);
+               
+               out.setf(ios::fixed, ios::floatfield); out.setf(ios::showpoint);
+               cout.setf(ios::fixed, ios::floatfield); cout.setf(ios::showpoint);
+               
+               out << "Mantel\tpValue" << endl;
+               out << mantel << '\t' << pValue << endl;
+               
+               out.close();
+       
+               cout << "\nmantel = " << mantel << "\tpValue = " << pValue << endl;
+               m->mothurOutJustToLog("\nmantel = " + toString(mantel) + "\tpValue = " + toString(pValue) + "\n"); 
+               
+               m->mothurOutEndLine();
+               m->mothurOut("Output File Names: "); m->mothurOutEndLine();
+               for (int i = 0; i < outputNames.size(); i++) {  m->mothurOut(outputNames[i]); m->mothurOutEndLine();    }
+               m->mothurOutEndLine();          
+               
+               return 0;
+       }
+       catch(exception& e) {
+               m->errorOut(e, "MantelCommand", "execute");     
+               exit(1);
+       }
+}
+
+//**********************************************************************************************************************
+
+