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diff --git a/rarefactsharedcommand.cpp b/rarefactsharedcommand.cpp
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+/*
+ *  rarefactsharedcommand.cpp
+ *  Dotur
+ *
+ *  Created by Sarah Westcott on 1/6/09.
+ *  Copyright 2009 Schloss Lab UMASS Amherst. All rights reserved.
+ *
+ */
+
+#include "rarefactsharedcommand.h"
+#include "sharedsobs.h"
+#include "sharednseqs.h"
+
+//**********************************************************************************************************************
+vector<string> RareFactSharedCommand::setParameters(){ 
+       try {
+               CommandParameter pshared("shared", "InputTypes", "", "", "none", "none", "none",false,true); parameters.push_back(pshared);
+               CommandParameter plabel("label", "String", "", "", "", "", "",false,false); parameters.push_back(plabel);
+               CommandParameter pfreq("freq", "Number", "", "100", "", "", "",false,false); parameters.push_back(pfreq);
+               CommandParameter piters("iters", "Number", "", "1000", "", "", "",false,false); parameters.push_back(piters);
+               CommandParameter pcalc("calc", "Multiple", "sharednseqs-sharedobserved", "sharedobserved", "", "", "",true,false); parameters.push_back(pcalc);
+               CommandParameter pjumble("jumble", "Boolean", "", "T", "", "", "",false,false); parameters.push_back(pjumble);
+               CommandParameter pgroups("groups", "String", "", "", "", "", "",false,false); parameters.push_back(pgroups);
+               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, "RareFactSharedCommand", "setParameters");
+               exit(1);
+       }
+}
+//**********************************************************************************************************************
+string RareFactSharedCommand::getHelpString(){ 
+       try {
+               string helpString = "";
+               ValidCalculators validCalculator;
+               helpString += "The collect.shared command parameters are shared, label, freq, calc and groups.  shared is required if there is no current sharedfile. \n";
+               helpString += "The rarefaction.shared command parameters are shared, label, iters, groups, jumble and calc.  shared is required if there is no current sharedfile. \n";
+               helpString += "The rarefaction command should be in the following format: \n";
+               helpString += "rarefaction.shared(label=yourLabel, iters=yourIters, calc=yourEstimators, jumble=yourJumble, groups=yourGroups).\n";
+               helpString += "The freq parameter is used indicate when to output your data, by default it is set to 100. But you can set it to a percentage of the number of sequence. For example freq=0.10, means 10%. \n";
+               helpString += "Example rarefaction.shared(label=unique-0.01-0.03,  iters=10000, groups=B-C, jumble=T, calc=sharedobserved).\n";
+               helpString += "The default values for iters is 1000, freq is 100, and calc is sharedobserved which calculates the shared rarefaction curve for the observed richness.\n";
+               helpString += "The default value for groups is all the groups in your groupfile, and jumble is true.\n";
+               helpString += validCalculator.printCalc("sharedrarefaction");
+               helpString += "The label parameter is used to analyze specific labels in your input.\n";
+               helpString += "The groups parameter allows you to specify which of the groups in your groupfile you would like analyzed.  You must enter at least 2 valid groups.\n";
+               helpString += "Note: No spaces between parameter labels (i.e. freq), '=' and parameters (i.e.yourFreq).\n";
+               return helpString;
+       }
+       catch(exception& e) {
+               m->errorOut(e, "RareFactSharedCommand", "getHelpString");
+               exit(1);
+       }
+}
+
+//**********************************************************************************************************************
+RareFactSharedCommand::RareFactSharedCommand(){        
+       try {
+               abort = true; calledHelp = true; 
+               setParameters();
+               vector<string> tempOutNames;
+               outputTypes["sharedrarefaction"] = tempOutNames;
+               outputTypes["sharedr_nseqs"] = tempOutNames;
+       }
+       catch(exception& e) {
+               m->errorOut(e, "RareFactSharedCommand", "RareFactSharedCommand");
+               exit(1);
+       }
+}
+//**********************************************************************************************************************
+
+RareFactSharedCommand::RareFactSharedCommand(string option)  {
+       try {
+               abort = false; calledHelp = false;   
+               allLines = 1;
+                               
+               //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();
+                       map<string,string>::iterator it;
+                       
+                       ValidParameters validParameter;
+                       
+                       //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;  }
+                       }
+                       
+                       //initialize outputTypes
+                       vector<string> tempOutNames;
+                       outputTypes["sharedrarefaction"] = tempOutNames;
+                       outputTypes["sharedr_nseqs"] = 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("shared");
+                               //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["shared"] = inputDir + it->second;           }
+                               }
+                       }
+                       
+                       //get shared file
+                       sharedfile = validParameter.validFile(parameters, "shared", true);
+                       if (sharedfile == "not open") { sharedfile = ""; abort = true; }        
+                       else if (sharedfile == "not found") { 
+                               //if there is a current shared file, use it
+                               sharedfile = m->getSharedFile(); 
+                               if (sharedfile != "") { m->mothurOut("Using " + sharedfile + " as input file for the shared parameter."); m->mothurOutEndLine(); }
+                               else {  m->mothurOut("You have no current sharedfile and the shared parameter is required."); m->mothurOutEndLine(); abort = true; }
+                       }else { m->setSharedFile(sharedfile); }
+                       
+                       
+                       //if the user changes the output directory command factory will send this info to us in the output parameter 
+                       outputDir = validParameter.validFile(parameters, "outputdir", false);           if (outputDir == "not found"){  outputDir = m->hasPath(sharedfile);             }
+                       
+                       
+                       //check for optional parameter and set defaults
+                       // ...at some point should added some additional type checking...
+                       label = validParameter.validFile(parameters, "label", false);                   
+                       if (label == "not found") { label = ""; }
+                       else { 
+                               if(label != "all") {  m->splitAtDash(label, labels);  allLines = 0;  }
+                               else { allLines = 1;  }
+                       }
+                       
+                               
+                       calc = validParameter.validFile(parameters, "calc", false);                     
+                       if (calc == "not found") { calc = "sharedobserved";  }
+                       else { 
+                                if (calc == "default")  {  calc = "sharedobserved";  }
+                       }
+                       m->splitAtDash(calc, Estimators);
+                       if (m->inUsersGroups("citation", Estimators)) { 
+                               ValidCalculators validCalc; validCalc.printCitations(Estimators); 
+                               //remove citation from list of calcs
+                               for (int i = 0; i < Estimators.size(); i++) { if (Estimators[i] == "citation") {  Estimators.erase(Estimators.begin()+i); break; } }
+                       }
+                       
+                       groups = validParameter.validFile(parameters, "groups", false);                 
+                       if (groups == "not found") { groups = ""; }
+                       else { 
+                               m->splitAtDash(groups, Groups);
+                       }
+                       m->setGroups(Groups);
+                       
+                       string temp;
+                       temp = validParameter.validFile(parameters, "freq", false);                     if (temp == "not found") { temp = "100"; }
+                       m->mothurConvert(temp, freq); 
+                       
+                       temp = validParameter.validFile(parameters, "iters", false);                    if (temp == "not found") { temp = "1000"; }
+                       m->mothurConvert(temp, nIters); 
+                       
+                       temp = validParameter.validFile(parameters, "jumble", false);                   if (temp == "not found") { temp = "T"; }
+                       if (m->isTrue(temp)) { jumble = true; }
+                       else { jumble = false; }
+                       m->jumble = jumble;
+                               
+               }
+
+       }
+       catch(exception& e) {
+               m->errorOut(e, "RareFactSharedCommand", "RareFactSharedCommand");
+               exit(1);
+       }
+}
+//**********************************************************************************************************************
+
+int RareFactSharedCommand::execute(){
+       try {
+       
+               if (abort == true) { if (calledHelp) { return 0; }  return 2;   }
+       
+               string fileNameRoot = outputDir + m->getRootName(m->getSimpleName(sharedfile));
+               
+               ValidCalculators validCalculator;
+                       
+               for (int i=0; i<Estimators.size(); i++) {
+                       if (validCalculator.isValidCalculator("sharedrarefaction", Estimators[i]) == true) { 
+                               if (Estimators[i] == "sharedobserved") { 
+                                       rDisplays.push_back(new RareDisplay(new SharedSobs(), new SharedThreeColumnFile(fileNameRoot+"shared.rarefaction", "")));
+                                       outputNames.push_back(fileNameRoot+"shared.rarefaction"); outputTypes["sharedrarefaction"].push_back(fileNameRoot+"shared.rarefaction");
+                               }else if (Estimators[i] == "sharednseqs") { 
+                                       rDisplays.push_back(new RareDisplay(new SharedNSeqs(), new SharedThreeColumnFile(fileNameRoot+"shared.r_nseqs", "")));
+                                       outputNames.push_back(fileNameRoot+"shared.r_nseqs"); outputTypes["sharedr_nseqs"].push_back(fileNameRoot+"shared.r_nseqs");
+                               }
+                       }
+               }
+               
+               //if the users entered no valid calculators don't execute command
+               if (rDisplays.size() == 0) { return 0; }
+                       
+               input = new InputData(sharedfile, "sharedfile");
+               lookup = input->getSharedRAbundVectors();
+               string lastLabel = lookup[0]->getLabel();
+               
+               if (m->control_pressed) { 
+                       m->clearGroups(); 
+                       delete input;
+                       for(int i=0;i<rDisplays.size();i++){    delete rDisplays[i];    }
+                       for (int i = 0; i < outputNames.size(); i++) {  m->mothurRemove(outputNames[i]);        }
+                       for (int i = 0; i < lookup.size(); i++) {  delete lookup[i];  } 
+                       return 0;
+               }
+
+
+               if (lookup.size() < 2) { 
+                       m->mothurOut("I cannot run the command without at least 2 valid groups."); 
+                       for (int i = 0; i < lookup.size(); i++) { delete lookup[i]; }
+                       return 0;
+               }
+               
+               //if the users enters label "0.06" and there is no "0.06" in their file use the next lowest label.
+               set<string> processedLabels;
+               set<string> userLabels = labels;
+       
+               //as long as you are not at the end of the file or done wih the lines you want
+               while((lookup[0] != NULL) && ((allLines == 1) || (userLabels.size() != 0))) {
+                       if (m->control_pressed) { 
+                               m->clearGroups(); 
+                               delete input;
+                               for(int i=0;i<rDisplays.size();i++){    delete rDisplays[i];    }
+                               for (int i = 0; i < outputNames.size(); i++) {  m->mothurRemove(outputNames[i]);        }
+                               for (int i = 0; i < lookup.size(); i++) {  delete lookup[i];  } 
+                               return 0;
+                       }
+                       
+                       if(allLines == 1 || labels.count(lookup[0]->getLabel()) == 1){
+                               m->mothurOut(lookup[0]->getLabel()); m->mothurOutEndLine();
+                               rCurve = new Rarefact(lookup, rDisplays);
+                               rCurve->getSharedCurve(freq, nIters);
+                               delete rCurve;
+                       
+                               processedLabels.insert(lookup[0]->getLabel());
+                               userLabels.erase(lookup[0]->getLabel());
+                       }
+                       
+                       if ((m->anyLabelsToProcess(lookup[0]->getLabel(), userLabels, "") == true) && (processedLabels.count(lastLabel) != 1)) {
+                                       string saveLabel = lookup[0]->getLabel();
+                       
+                                       for (int i = 0; i < lookup.size(); i++) {  delete lookup[i];  } 
+                                       lookup = input->getSharedRAbundVectors(lastLabel);
+
+                                       m->mothurOut(lookup[0]->getLabel()); m->mothurOutEndLine();
+                                       rCurve = new Rarefact(lookup, rDisplays);
+                                       rCurve->getSharedCurve(freq, nIters);
+                                       delete rCurve;
+
+                                       processedLabels.insert(lookup[0]->getLabel());
+                                       userLabels.erase(lookup[0]->getLabel());
+                                       
+                                       //restore real lastlabel to save below
+                                       lookup[0]->setLabel(saveLabel);
+                       }
+                               
+                       
+                       lastLabel = lookup[0]->getLabel();
+                       
+                       //get next line to process
+                       for (int i = 0; i < lookup.size(); i++) {  delete lookup[i];  } 
+                       lookup = input->getSharedRAbundVectors();
+               }
+               
+               if (m->control_pressed) { 
+                       m->clearGroups(); 
+                       delete input;
+                       for(int i=0;i<rDisplays.size();i++){    delete rDisplays[i];    }
+                       for (int i = 0; i < outputNames.size(); i++) {  m->mothurRemove(outputNames[i]);        }
+                       return 0;
+               }
+               
+               //output error messages about any remaining user labels
+               set<string>::iterator it;
+               bool needToRun = false;
+               for (it = userLabels.begin(); it != userLabels.end(); it++) {  
+                       m->mothurOut("Your file does not include the label " + *it); 
+                       if (processedLabels.count(lastLabel) != 1) {
+                               m->mothurOut(". I will use " + lastLabel + "."); m->mothurOutEndLine();
+                               needToRun = true;
+                       }else {
+                               m->mothurOut(". Please refer to " + lastLabel + "."); m->mothurOutEndLine();
+                       }
+               }
+               
+               if (m->control_pressed) { 
+                       m->clearGroups(); 
+                       delete input; 
+                       for(int i=0;i<rDisplays.size();i++){    delete rDisplays[i];    }
+                       for (int i = 0; i < outputNames.size(); i++) {  m->mothurRemove(outputNames[i]);        }
+                       return 0;
+               }
+               
+               //run last label if you need to
+               if (needToRun == true)  {
+                       for (int i = 0; i < lookup.size(); i++) {  if (lookup[i] != NULL) {     delete lookup[i]; }  } 
+                       lookup = input->getSharedRAbundVectors(lastLabel);
+
+                       m->mothurOut(lookup[0]->getLabel()); m->mothurOutEndLine();
+                       rCurve = new Rarefact(lookup, rDisplays);
+                       rCurve->getSharedCurve(freq, nIters);
+                       delete rCurve;
+                       for (int i = 0; i < lookup.size(); i++) {  delete lookup[i];  } 
+               }
+               
+               for(int i=0;i<rDisplays.size();i++){    delete rDisplays[i];    }       
+               m->clearGroups(); 
+               delete input;
+               
+               if (m->control_pressed) { for (int i = 0; i < outputNames.size(); i++) {        m->mothurRemove(outputNames[i]); } return 0; }
+               
+               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, "RareFactSharedCommand", "execute");
+               exit(1);
+       }
+}
+
+
+//**********************************************************************************************************************