]> git.donarmstrong.com Git - mothur.git/blobdiff - preclustercommand.cpp
removed unused copy constructors and comments within comments that where causing...
[mothur.git] / preclustercommand.cpp
index cab29633c8528c30fe0ba032cc6d76bfea44eccb..8e4f3274a490679c85f992f8584605c877c84850 100644 (file)
@@ -8,22 +8,77 @@
  */
 
 #include "preclustercommand.h"
+#include "deconvolutecommand.h"
 
 //**********************************************************************************************************************
-inline bool comparePriority(seqPNode first, seqPNode second) {  return (first.numIdentical > second.numIdentical); }
+vector<string> PreClusterCommand::setParameters(){     
+       try {
+               CommandParameter pfasta("fasta", "InputTypes", "", "", "none", "none", "none",false,true); parameters.push_back(pfasta);
+               CommandParameter pname("name", "InputTypes", "", "", "none", "none", "none",false,false); parameters.push_back(pname);
+               CommandParameter pgroup("group", "InputTypes", "", "", "none", "none", "none",false,false); parameters.push_back(pgroup);
+               CommandParameter pdiffs("diffs", "Number", "", "0", "", "", "",false,false); parameters.push_back(pdiffs);
+               CommandParameter pprocessors("processors", "Number", "", "1", "", "", "",false,false); parameters.push_back(pprocessors);
+               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, "PreClusterCommand", "setParameters");
+               exit(1);
+       }
+}
+//**********************************************************************************************************************
+string PreClusterCommand::getHelpString(){     
+       try {
+               string helpString = "";
+               helpString += "The pre.cluster command groups sequences that are within a given number of base mismatches.\n";
+               helpString += "The pre.cluster command outputs a new fasta and name file.\n";
+               helpString += "The pre.cluster command parameters are fasta, names and diffs. The fasta parameter is required. \n";
+               helpString += "The names parameter allows you to give a list of seqs that are identical. This file is 2 columns, first column is name or representative sequence, second column is a list of its identical sequences separated by commas.\n";
+               helpString += "The group parameter allows you to provide a group file so you can cluster by group. \n";
+               helpString += "The diffs parameter allows you to specify maximum number of mismatched bases allowed between sequences in a grouping. The default is 1.\n";
+               helpString += "The pre.cluster command should be in the following format: \n";
+               helpString += "pre.cluster(fasta=yourFastaFile, names=yourNamesFile, diffs=yourMaxDiffs) \n";
+               helpString += "Example pre.cluster(fasta=amazon.fasta, diffs=2).\n";
+               helpString += "Note: No spaces between parameter labels (i.e. fasta), '=' and parameters (i.e.yourFasta).\n";
+               return helpString;
+       }
+       catch(exception& e) {
+               m->errorOut(e, "PreClusterCommand", "getHelpString");
+               exit(1);
+       }
+}
+
+//**********************************************************************************************************************
+PreClusterCommand::PreClusterCommand(){        
+       try {
+               abort = true; calledHelp = true; 
+               setParameters();
+               vector<string> tempOutNames;
+               outputTypes["fasta"] = tempOutNames;
+               outputTypes["name"] = tempOutNames;
+               outputTypes["map"] = tempOutNames;
+       }
+       catch(exception& e) {
+               m->errorOut(e, "PreClusterCommand", "PreClusterCommand");
+               exit(1);
+       }
+}
 //**********************************************************************************************************************
 
 PreClusterCommand::PreClusterCommand(string option) {
        try {
-               abort = false;
+               abort = false; calledHelp = false;   
                
                //allow user to run help
-               if(option == "help") { help(); abort = true; }
+               if(option == "help") { help(); abort = true; calledHelp = true; }
+               else if(option == "citation") { citation(); abort = true; calledHelp = true;}
                
                else {
-                       //valid paramters for this command
-                       string Array[] =  {"fasta", "name", "diffs", "outputdir","inputdir"};
-                       vector<string> myArray (Array, Array+(sizeof(Array)/sizeof(string)));
+                       vector<string> myArray = setParameters();
                        
                        OptionParser parser(option);
                        map<string, string> parameters = parser.getParameters();
@@ -36,6 +91,12 @@ PreClusterCommand::PreClusterCommand(string option) {
                                if (validParameter.isValidParameter(it2->first, myArray, it2->second) != true) {  abort = true;  }
                        }
                        
+                       //initialize outputTypes
+                       vector<string> tempOutNames;
+                       outputTypes["fasta"] = tempOutNames;
+                       outputTypes["name"] = tempOutNames;
+                       outputTypes["map"] = 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 = "";          }
@@ -44,7 +105,7 @@ PreClusterCommand::PreClusterCommand(string option) {
                                it = parameters.find("fasta");
                                //user has given a template file
                                if(it != parameters.end()){ 
-                                       path = hasPath(it->second);
+                                       path = m->hasPath(it->second);
                                        //if the user has not given a path then, add inputdir. else leave path alone.
                                        if (path == "") {       parameters["fasta"] = inputDir + it->second;            }
                                }
@@ -52,32 +113,59 @@ PreClusterCommand::PreClusterCommand(string option) {
                                it = parameters.find("name");
                                //user has given a template file
                                if(it != parameters.end()){ 
-                                       path = hasPath(it->second);
+                                       path = m->hasPath(it->second);
                                        //if the user has not given a path then, add inputdir. else leave path alone.
                                        if (path == "") {       parameters["name"] = inputDir + it->second;             }
                                }
+                               
+                               it = parameters.find("group");
+                               //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["group"] = inputDir + it->second;            }
+                               }
                        }
 
                        //check for required parameters
                        fastafile = validParameter.validFile(parameters, "fasta", true);
-                       if (fastafile == "not found") { m->mothurOut("fasta is a required parameter for the pre.cluster command."); m->mothurOutEndLine(); abort = true; }
+                       if (fastafile == "not found") {                                 
+                               fastafile = m->getFastaFile(); 
+                               if (fastafile != "") { m->mothurOut("Using " + fastafile + " as input file for the fasta parameter."); m->mothurOutEndLine(); }
+                               else {  m->mothurOut("You have no current fastafile and the fasta parameter is required."); m->mothurOutEndLine(); abort = true; }
+                       }
                        else if (fastafile == "not open") { abort = true; }     
+                       else { m->setFastaFile(fastafile); }
                        
                        //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 = ""; 
-                               outputDir += hasPath(fastafile); //if user entered a file with a path then preserve it  
+                               outputDir += m->hasPath(fastafile); //if user entered a file with a path then preserve it       
                        }
 
                        //check for optional parameter and set defaults
                        // ...at some point should added some additional type checking...
                        namefile = validParameter.validFile(parameters, "name", true);
                        if (namefile == "not found") { namefile =  "";  }
-                       else if (namefile == "not open") { abort = true; }      
-                       else {  readNameFile();  }
+                       else if (namefile == "not open") { namefile = ""; abort = true; }       
+                       else {  m->setNameFile(namefile); }
+                       
+                       groupfile = validParameter.validFile(parameters, "group", true);
+                       if (groupfile == "not found") { groupfile =  "";  bygroup = false; }
+                       else if (groupfile == "not open") { abort = true; groupfile =  ""; }    
+                       else {   m->setGroupFile(groupfile); bygroup = true;  }
+                       
+                       string temp     = validParameter.validFile(parameters, "diffs", false);         if(temp == "not found"){        temp = "1"; }
+                       m->mothurConvert(temp, diffs); 
+                       
+                       temp = validParameter.validFile(parameters, "processors", false);       if (temp == "not found"){       temp = m->getProcessors();      }
+                       m->setProcessors(temp);
+                       m->mothurConvert(temp, processors);
                        
-                       string temp     = validParameter.validFile(parameters, "diffs", false);                         if(temp == "not found"){        temp = "1"; }
-                       convert(temp, diffs); 
+                       if (namefile == "") {
+                               vector<string> files; files.push_back(fastafile);
+                               parser.getNameFile(files);
+                       }
                }
                                
        }
@@ -86,137 +174,347 @@ PreClusterCommand::PreClusterCommand(string option) {
                exit(1);
        }
 }
-
-//**********************************************************************************************************************
-PreClusterCommand::~PreClusterCommand(){}      
 //**********************************************************************************************************************
 
-void PreClusterCommand::help(){
+int PreClusterCommand::execute(){
        try {
-               m->mothurOut("The pre.cluster command groups sequences that are within a given number of base mismatches.\n");
-               m->mothurOut("The pre.cluster command outputs a new fasta and name file.\n");
-               m->mothurOut("The pre.cluster command parameters are fasta, names and diffs. The fasta parameter is required. \n");
-               m->mothurOut("The names parameter allows you to give a list of seqs that are identical. This file is 2 columns, first column is name or representative sequence, second column is a list of its identical sequences separated by commas.\n");
-               m->mothurOut("The diffs parameter allows you to specify maximum number of mismatched bases allowed between sequences in a grouping. The default is 1.\n");
-               m->mothurOut("The pre.cluster command should be in the following format: \n");
-               m->mothurOut("pre.cluster(fasta=yourFastaFile, names=yourNamesFile, diffs=yourMaxDiffs) \n");
-               m->mothurOut("Example pre.cluster(fasta=amazon.fasta, diffs=2).\n");
-               m->mothurOut("Note: No spaces between parameter labels (i.e. fasta), '=' and parameters (i.e.yourFasta).\n\n");
+               
+               if (abort == true) { if (calledHelp) { return 0; }  return 2;   }
+               
+               int start = time(NULL);
+               
+               string fileroot = outputDir + m->getRootName(m->getSimpleName(fastafile));
+               string newFastaFile = fileroot + "precluster" + m->getExtension(fastafile);
+               string newNamesFile = fileroot + "precluster.names";
+               string newMapFile = fileroot + "precluster.map"; //add group name if by group
+               outputNames.push_back(newFastaFile); outputTypes["fasta"].push_back(newFastaFile);
+               outputNames.push_back(newNamesFile); outputTypes["name"].push_back(newNamesFile);
+               
+               
+               if (bygroup) {
+                       //clear out old files
+                       ofstream outFasta; m->openOutputFile(newFastaFile, outFasta); outFasta.close();
+                       ofstream outNames; m->openOutputFile(newNamesFile, outNames);  outNames.close();
+                       newMapFile = fileroot + "precluster.";
+                       
+                       //parse fasta and name file by group
+                       SequenceParser* parser;
+                       if (namefile != "") { parser = new SequenceParser(groupfile, fastafile, namefile);      }
+                       else                            { parser = new SequenceParser(groupfile, fastafile);                    }
+                       
+                       vector<string> groups = parser->getNamesOfGroups();
+                       
+                       if(processors == 1)     {       driverGroups(parser, newFastaFile, newNamesFile, newMapFile, 0, groups.size(), groups); }
+                       else                            {       createProcessesGroups(parser, newFastaFile, newNamesFile, newMapFile, groups);                  }
+                       
+                       delete parser;
+                       
+                       if (m->control_pressed) { for (int i = 0; i < outputNames.size(); i++) {        m->mothurRemove(outputNames[i]);        }        return 0; }
+                       
+                       //run unique.seqs for deconvolute results
+                       string inputString = "fasta=" + newFastaFile;
+                       if (namefile != "") { inputString += ", name=" + newNamesFile; }
+                       m->mothurOutEndLine(); 
+                       m->mothurOut("/******************************************/"); m->mothurOutEndLine(); 
+                       m->mothurOut("Running command: unique.seqs(" + inputString + ")"); m->mothurOutEndLine(); 
+                       
+                       Command* uniqueCommand = new DeconvoluteCommand(inputString);
+                       uniqueCommand->execute();
+                       
+                       map<string, vector<string> > filenames = uniqueCommand->getOutputFiles();
+                       
+                       delete uniqueCommand;
+                       
+                       m->mothurOut("/******************************************/"); m->mothurOutEndLine(); 
+                       
+                       m->renameFile(filenames["fasta"][0], newFastaFile);
+                       
+                       m->mothurOut("It took " + toString(time(NULL) - start) + " secs to run pre.cluster."); m->mothurOutEndLine(); 
+                               
+               }else {
+                       if (namefile != "") { readNameFile(); }
+               
+                       //reads fasta file and return number of seqs
+                       int numSeqs = readFASTA(); //fills alignSeqs and makes all seqs active
+               
+                       if (m->control_pressed) { for (int i = 0; i < outputNames.size(); i++) {        m->mothurRemove(outputNames[i]);        } return 0; }
+       
+                       if (numSeqs == 0) { m->mothurOut("Error reading fasta file...please correct."); m->mothurOutEndLine(); return 0;  }
+                       if (diffs > length) { m->mothurOut("Error: diffs is greater than your sequence length."); m->mothurOutEndLine(); return 0;  }
+                       
+                       int count = process(newMapFile);
+                       outputNames.push_back(newMapFile); outputTypes["map"].push_back(newMapFile);
+                       
+                       if (m->control_pressed) { for (int i = 0; i < outputNames.size(); i++) {        m->mothurRemove(outputNames[i]);        } return 0; }   
+                       
+                       m->mothurOut("Total number of sequences before precluster was " + toString(alignSeqs.size()) + "."); m->mothurOutEndLine();
+                       m->mothurOut("pre.cluster removed " + toString(count) + " sequences."); m->mothurOutEndLine(); m->mothurOutEndLine(); 
+                       printData(newFastaFile, newNamesFile);
+                       
+                       m->mothurOut("It took " + toString(time(NULL) - start) + " secs to cluster " + toString(numSeqs) + " sequences."); m->mothurOutEndLine(); 
+               }
+                               
+               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();
+               
+               //set fasta file as new current fastafile
+               string current = "";
+               itTypes = outputTypes.find("fasta");
+               if (itTypes != outputTypes.end()) {
+                       if ((itTypes->second).size() != 0) { current = (itTypes->second)[0]; m->setFastaFile(current); }
+               }
+               
+               itTypes = outputTypes.find("name");
+               if (itTypes != outputTypes.end()) {
+                       if ((itTypes->second).size() != 0) { current = (itTypes->second)[0]; m->setNameFile(current); }
+               }
+               
+               return 0;
+               
        }
        catch(exception& e) {
-               m->errorOut(e, "PreClusterCommand", "help");
+               m->errorOut(e, "PreClusterCommand", "execute");
                exit(1);
        }
 }
-//**********************************************************************************************************************
-
-int PreClusterCommand::execute(){
+/**************************************************************************************************/
+int PreClusterCommand::createProcessesGroups(SequenceParser* parser, string newFName, string newNName, string newMFile, vector<string> groups) {
        try {
                
-               if (abort == true) { return 0; }
+               vector<int> processIDS;
+               int process = 1;
+               int num = 0;
                
-               //reads fasta file and return number of seqs
-               int numSeqs = readFASTA(); //fills alignSeqs and makes all seqs active
+               //sanity check
+               if (groups.size() < processors) { processors = groups.size(); }
                
-               if (m->control_pressed) { return 0; }
-       
-               if (numSeqs == 0) { m->mothurOut("Error reading fasta file...please correct."); m->mothurOutEndLine(); return 0;  }
-               if (diffs > length) { m->mothurOut("Error: diffs is greater than your sequence length."); m->mothurOutEndLine(); return 0;  }
+               //divide the groups between the processors
+               vector<linePair> lines;
+               int numGroupsPerProcessor = groups.size() / processors;
+               for (int i = 0; i < processors; i++) {
+                       int startIndex =  i * numGroupsPerProcessor;
+                       int endIndex = (i+1) * numGroupsPerProcessor;
+                       if(i == (processors - 1)){      endIndex = groups.size();       }
+                       lines.push_back(linePair(startIndex, endIndex));
+               }
                
-               string fileroot = outputDir + getRootName(getSimpleName(fastafile));
-               string newFastaFile = fileroot + "precluster" + getExtension(fastafile);
-               string newNamesFile = fileroot + "precluster.names";
-               ofstream outFasta;
-               ofstream outNames;
+#if defined (__APPLE__) || (__MACH__) || (linux) || (__linux)          
                
-               openOutputFile(newFastaFile, outFasta);
-               openOutputFile(newNamesFile, outNames);
-
-               //sort seqs by number of identical seqs
-               alignSeqs.sort(comparePriority);
-
-               int count = 0;
-               int i = 0;
-               //think about running through twice...
-               list<seqPNode>::iterator itList;
-               list<seqPNode>::iterator itList2;
-               for (itList = alignSeqs.begin(); itList != alignSeqs.end();) {
+               //loop through and create all the processes you want
+               while (process != processors) {
+                       int pid = fork();
                        
-                       //try to merge it with all smaller seqs
-                       for (itList2 = alignSeqs.begin(); itList2 != alignSeqs.end();) {
-                               
-                               if (m->control_pressed) { outFasta.close(); outNames.close(); remove(newFastaFile.c_str()); remove(newNamesFile.c_str());  return 0; }
-                               
+                       if (pid > 0) {
+                               processIDS.push_back(pid);  //create map from line number to pid so you can append files in correct order later
+                               process++;
+                       }else if (pid == 0){
+                               num = driverGroups(parser, newFName + toString(getpid()) + ".temp", newNName + toString(getpid()) + ".temp", newMFile, lines[process].start, lines[process].end, groups);
+                               exit(0);
+                       }else { 
+                               m->mothurOut("[ERROR]: unable to spawn the necessary processes."); m->mothurOutEndLine(); 
+                               for (int i = 0; i < processIDS.size(); i++) { kill (processIDS[i], SIGINT); }
+                               exit(0);
+                       }
+               }
+               
+               //do my part
+               num = driverGroups(parser, newFName, newNName, newMFile, lines[0].start, lines[0].end, groups);
+               
+               //force parent to wait until all the processes are done
+               for (int i=0;i<processIDS.size();i++) { 
+                       int temp = processIDS[i];
+                       wait(&temp);
+               }
+               
+#else
+               
+               //////////////////////////////////////////////////////////////////////////////////////////////////////
+               //Windows version shared memory, so be careful when passing variables through the preClusterData struct. 
+               //Above fork() will clone, so memory is separate, but that's not the case with windows, 
+               //////////////////////////////////////////////////////////////////////////////////////////////////////
+               
+               vector<preClusterData*> pDataArray; 
+               DWORD   dwThreadIdArray[processors-1];
+               HANDLE  hThreadArray[processors-1]; 
+               
+               //Create processor worker threads.
+               for( int i=1; i<processors; i++ ){
+                       // Allocate memory for thread data.
+                       string extension = toString(i) + ".temp";
                        
-                               if (itList->seq.getName() != itList2->seq.getName()) { //you don't want to merge with yourself
-                                       //are you within "diff" bases
-                                       
-                                       int mismatch = calcMisMatches((*itList).seq.getAligned(), (*itList2).seq.getAligned());
-
-                                       if (mismatch <= diffs) {
-                                               //merge
-                                               (*itList).names += ',' + (*itList2).names;
-                                               (*itList).numIdentical += (*itList2).numIdentical;
-                                               
-                                               itList2 = alignSeqs.erase(itList2); //itList2--;
-                                               count++;
-                                       }else{ itList2++; }
-                               }else{ itList2++; }
-
+                       preClusterData* tempPreCluster = new preClusterData(fastafile, namefile, groupfile, (newFName+extension), (newNName+extension), newMFile, groups, m, lines[i].start, lines[i].end, diffs, i);
+                       pDataArray.push_back(tempPreCluster);
+                       processIDS.push_back(i);
+                       
+                       //MySeqSumThreadFunction is in header. It must be global or static to work with the threads.
+                       //default security attributes, thread function name, argument to thread function, use default creation flags, returns the thread identifier
+                       hThreadArray[i-1] = CreateThread(NULL, 0, MyPreclusterThreadFunction, pDataArray[i-1], 0, &dwThreadIdArray[i-1]);   
+               }
+               
+                               
+               //using the main process as a worker saves time and memory
+               num = driverGroups(parser, newFName, newNName, newMFile, lines[0].start, lines[0].end, groups);
+               
+               //Wait until all threads have terminated.
+               WaitForMultipleObjects(processors-1, hThreadArray, TRUE, INFINITE);
+               
+               //Close all thread handles and free memory allocations.
+               for(int i=0; i < pDataArray.size(); i++){
+                       for (int j = 0; j < pDataArray[i]->mapFileNames.size(); j++) {
+                               outputNames.push_back(pDataArray[i]->mapFileNames[j]); outputTypes["map"].push_back(pDataArray[i]->mapFileNames[j]); 
                        }
-
-                       //ouptut this sequence
-                       printData(outFasta, outNames, (*itList));
+                       CloseHandle(hThreadArray[i]);
+                       delete pDataArray[i];
+               }
+               
+#endif         
+               
+               //append output files
+               for(int i=0;i<processIDS.size();i++){
+                       //newFName = m->getFullPathName(".\\" + newFName);
+                       //newNName = m->getFullPathName(".\\" + newNName);
+                       
+                       m->appendFiles((newFName + toString(processIDS[i]) + ".temp"), newFName);
+                       m->mothurRemove((newFName + toString(processIDS[i]) + ".temp"));
                        
-                       //remove sequence
-                       itList = alignSeqs.erase(itList); 
+                       m->appendFiles((newNName + toString(processIDS[i]) + ".temp"), newNName);
+                       m->mothurRemove((newNName + toString(processIDS[i]) + ".temp"));
+               }
+               
+               return num;     
+               
+       }
+       catch(exception& e) {
+               m->errorOut(e, "PreClusterCommand", "createProcessesGroups");
+               exit(1);
+       }
+}
+/**************************************************************************************************/
+int PreClusterCommand::driverGroups(SequenceParser* parser, string newFFile, string newNFile, string newMFile, int start, int end, vector<string> groups){
+       try {
+               
+               int numSeqs = 0;
+               
+               //precluster each group
+               for (int i = start; i < end; i++) {
                        
-                       i++;
+                       start = time(NULL);
+                       
+                       if (m->control_pressed) {  return 0; }
+                       
+                       m->mothurOutEndLine(); m->mothurOut("Processing group " + groups[i] + ":"); m->mothurOutEndLine();
+                       
+                       map<string, string> thisNameMap;
+                       if (namefile != "") { thisNameMap = parser->getNameMap(groups[i]); }
+                       vector<Sequence> thisSeqs = parser->getSeqs(groups[i]);
+                       
+                       //fill alignSeqs with this groups info.
+                       numSeqs = loadSeqs(thisNameMap, thisSeqs);
+                       
+                       if (m->control_pressed) {   return 0; }
+                       
+                       if (diffs > length) { m->mothurOut("Error: diffs is greater than your sequence length."); m->mothurOutEndLine(); m->control_pressed = true; return 0;  }
+                       
+                       int count = process(newMFile+groups[i]+".map");
+                       outputNames.push_back(newMFile+groups[i]+".map"); outputTypes["map"].push_back(newMFile+groups[i]+".map");
+                       
+                       if (m->control_pressed) {  return 0; }
+                       
+                       m->mothurOut("Total number of sequences before pre.cluster was " + toString(alignSeqs.size()) + "."); m->mothurOutEndLine();
+                       m->mothurOut("pre.cluster removed " + toString(count) + " sequences."); m->mothurOutEndLine(); m->mothurOutEndLine(); 
+                       printData(newFFile, newNFile);
+                       
+                       m->mothurOut("It took " + toString(time(NULL) - start) + " secs to cluster " + toString(numSeqs) + " sequences."); m->mothurOutEndLine(); 
                        
-                       if(i % 100 == 0)        { m->mothurOut(toString(i) + "\t" + toString(numSeqs - count) + "\t" + toString(count)); m->mothurOutEndLine(); }
                }
-                               
-               if(i % 100 != 0)        { m->mothurOut(toString(i) + "\t" + toString(numSeqs - count) + "\t" + toString(count)); m->mothurOutEndLine(); }
                
-               outFasta.close();
-               outNames.close();
+               return numSeqs;
+       }
+       catch(exception& e) {
+               m->errorOut(e, "PreClusterCommand", "driverGroups");
+               exit(1);
+       }
+}
+/**************************************************************************************************/
+int PreClusterCommand::process(string newMapFile){
+       try {
+               ofstream out;
+               m->openOutputFile(newMapFile, out);
                
-               if (m->control_pressed) {  remove(newFastaFile.c_str()); remove(newNamesFile.c_str());  return 0; }
+               //sort seqs by number of identical seqs
+               sort(alignSeqs.begin(), alignSeqs.end(), comparePriority);
+               
+               int count = 0;
+               int numSeqs = alignSeqs.size();
                
-               m->mothurOut("Total number of sequences before precluster was " + toString(numSeqs) + "."); m->mothurOutEndLine();
-               m->mothurOut("pre.cluster removed " + toString(count) + " sequences."); m->mothurOutEndLine(); 
+               //think about running through twice...
+               for (int i = 0; i < numSeqs; i++) {
+                       
+                       //are you active
+                       //                      itActive = active.find(alignSeqs[i].seq.getName());
+                       
+                       if (alignSeqs[i].active) {  //this sequence has not been merged yet
+                               
+                               string chunk = alignSeqs[i].seq.getName() + "\t" + toString(alignSeqs[i].numIdentical) + "\t" + toString(0) + "\t" + alignSeqs[i].seq.getAligned() + "\n";
+                               
+                               //try to merge it with all smaller seqs
+                               for (int j = i+1; j < numSeqs; j++) {
+                                       
+                                       if (m->control_pressed) { out.close(); return 0; }
+                                       
+                                       if (alignSeqs[j].active) {  //this sequence has not been merged yet
+                                               //are you within "diff" bases
+                                               int mismatch = calcMisMatches(alignSeqs[i].seq.getAligned(), alignSeqs[j].seq.getAligned());
+                                               
+                                               if (mismatch <= diffs) {
+                                                       //merge
+                                                       alignSeqs[i].names += ',' + alignSeqs[j].names;
+                                                       alignSeqs[i].numIdentical += alignSeqs[j].numIdentical;
+                                                       
+                                                       chunk += alignSeqs[j].seq.getName() + "\t" + toString(alignSeqs[j].numIdentical) + "\t" + toString(mismatch) + "\t" + alignSeqs[j].seq.getAligned() + "\n";
+                                                       
+                                                       alignSeqs[j].active = 0;
+                                                       alignSeqs[j].numIdentical = 0;
+                                                       count++;
+                                               }
+                                       }//end if j active
+                               }//end for loop j
+                               
+                               //remove from active list 
+                               alignSeqs[i].active = 0;
+                               
+                               out << "ideal_seq_" << (i+1) << '\t' << alignSeqs[i].numIdentical << endl << chunk << endl;;
+                               
+                       }//end if active i
+                       if(i % 100 == 0)        { m->mothurOut(toString(i) + "\t" + toString(numSeqs - count) + "\t" + toString(count)); m->mothurOutEndLine(); }
+               }
+               out.close();
                
-               if (m->control_pressed) { remove(newFastaFile.c_str()); remove(newNamesFile.c_str()); return 0; }
+               if(numSeqs % 100 != 0)  { m->mothurOut(toString(numSeqs) + "\t" + toString(numSeqs - count) + "\t" + toString(count)); m->mothurOutEndLine();   }       
                
-               m->mothurOutEndLine();
-               m->mothurOut("Output File Names: "); m->mothurOutEndLine();
-               m->mothurOut(newFastaFile); m->mothurOutEndLine();      
-               m->mothurOut(newNamesFile); m->mothurOutEndLine();      
-               m->mothurOutEndLine();
-
-               return 0;
+               return count;
                
        }
        catch(exception& e) {
-               m->errorOut(e, "PreClusterCommand", "execute");
+               m->errorOut(e, "PreClusterCommand", "process");
                exit(1);
        }
 }
-
 /**************************************************************************************************/
-
-//this requires the names and fasta file to be in the same order
-
 int PreClusterCommand::readFASTA(){
        try {
                //ifstream inNames;
                ifstream inFasta;
                
-               //openInputFile(namefile, inNames);
-               openInputFile(fastafile, inFasta);
+               //m->openInputFile(namefile, inNames);
+               m->openInputFile(fastafile, inFasta);
                
                //string firstCol, secondCol, nameString;
-               length = 0;
+               set<int> lengths;
                
                while (!inFasta.eof()) {
                        
@@ -225,14 +523,14 @@ int PreClusterCommand::readFASTA(){
                        //inNames >> firstCol >> secondCol;
                        //nameString = secondCol;
                        
-                       //gobble(inNames);
+                       //m->gobble(inNames);
                        //int size = 1;
                        //while (secondCol.find_first_of(',') != -1) { 
                        //      size++;
                        //      secondCol = secondCol.substr(secondCol.find_first_of(',')+1, secondCol.length());
                        //}
                        
-                       Sequence seq(inFasta);  gobble(inFasta);
+                       Sequence seq(inFasta);  m->gobble(inFasta);
                        
                        if (seq.getName() != "") {  //can get "" if commented line is at end of fasta file
                                if (namefile != "") {
@@ -242,17 +540,20 @@ int PreClusterCommand::readFASTA(){
                                        else{
                                                seqPNode tempNode(itSize->second, seq, names[seq.getName()]);
                                                alignSeqs.push_back(tempNode);
-                                               if (seq.getAligned().length() > length) {  length = seq.getAligned().length();  }
+                                               lengths.insert(seq.getAligned().length());
                                        }       
                                }else { //no names file, you are identical to yourself 
                                        seqPNode tempNode(1, seq, seq.getName());
                                        alignSeqs.push_back(tempNode);
-                                       if (seq.getAligned().length() > length) {  length = seq.getAligned().length();  }
+                                       lengths.insert(seq.getAligned().length());
                                }
                        }
                }
                inFasta.close();
                //inNames.close();
+        
+        if (lengths.size() > 1) { m->control_pressed = true; m->mothurOut("[ERROR]: your sequences are not all the same length. pre.cluster requires sequences to be aligned."); m->mothurOutEndLine(); }
+        
                return alignSeqs.size();
        }
        
@@ -261,7 +562,57 @@ int PreClusterCommand::readFASTA(){
                exit(1);
        }
 }
-
+/**************************************************************************************************/
+int PreClusterCommand::loadSeqs(map<string, string>& thisName, vector<Sequence>& thisSeqs){
+       try {
+               set<int> lengths;
+               alignSeqs.clear();
+               map<string, string>::iterator it;
+               bool error = false;
+                       
+               for (int i = 0; i < thisSeqs.size(); i++) {
+                       
+                       if (m->control_pressed) { return 0; }
+                                               
+                       if (namefile != "") {
+                               it = thisName.find(thisSeqs[i].getName());
+                               
+                               //should never be true since parser checks for this
+                               if (it == thisName.end()) { m->mothurOut(thisSeqs[i].getName() + " is not in your names file, please correct."); m->mothurOutEndLine(); error = true; }
+                               else{
+                                       //get number of reps
+                                       int numReps = 1;
+                                       for(int j=0;j<(it->second).length();j++){
+                                               if((it->second)[j] == ','){     numReps++;      }
+                                       }
+                                       
+                                       seqPNode tempNode(numReps, thisSeqs[i], it->second);
+                                       alignSeqs.push_back(tempNode);
+                    lengths.insert(thisSeqs[i].getAligned().length());
+                               }       
+                       }else { //no names file, you are identical to yourself 
+                               seqPNode tempNode(1, thisSeqs[i], thisSeqs[i].getName());
+                               alignSeqs.push_back(tempNode);
+                               lengths.insert(thisSeqs[i].getAligned().length());
+                       }
+               }
+               
+        if (lengths.size() > 1) { error = true; m->mothurOut("[ERROR]: your sequences are not all the same length. pre.cluster requires sequences to be aligned."); m->mothurOutEndLine(); }
+        
+               //sanity check
+               if (error) { m->control_pressed = true; }
+               
+               thisSeqs.clear();
+               
+               return alignSeqs.size();
+       }
+       
+       catch(exception& e) {
+               m->errorOut(e, "PreClusterCommand", "loadSeqs");
+               exit(1);
+       }
+}
+                               
 /**************************************************************************************************/
 
 int PreClusterCommand::calcMisMatches(string seq1, string seq2){
@@ -284,10 +635,29 @@ int PreClusterCommand::calcMisMatches(string seq1, string seq2){
 
 /**************************************************************************************************/
 
-void PreClusterCommand::printData(ofstream& outFasta, ofstream& outNames, seqPNode thisSeq){
+void PreClusterCommand::printData(string newfasta, string newname){
        try {
-               thisSeq.seq.printSequence(outFasta); 
-               outNames << thisSeq.seq.getName() << '\t' << thisSeq.names << endl;
+               ofstream outFasta;
+               ofstream outNames;
+               
+               if (bygroup) {
+                       m->openOutputFileAppend(newfasta, outFasta);
+                       m->openOutputFileAppend(newname, outNames);
+               }else {
+                       m->openOutputFile(newfasta, outFasta);
+                       m->openOutputFile(newname, outNames);
+               }
+               
+               for (int i = 0; i < alignSeqs.size(); i++) {
+                       if (alignSeqs[i].numIdentical != 0) {
+                               alignSeqs[i].seq.printSequence(outFasta); 
+                               outNames << alignSeqs[i].seq.getName() << '\t' << alignSeqs[i].names << endl;
+                       }
+               }
+               
+               outFasta.close();
+               outNames.close();
+               
        }
        catch(exception& e) {
                m->errorOut(e, "PreClusterCommand", "printData");
@@ -299,16 +669,16 @@ void PreClusterCommand::printData(ofstream& outFasta, ofstream& outNames, seqPNo
 void PreClusterCommand::readNameFile(){
        try {
                ifstream in;
-               openInputFile(namefile, in);
+               m->openInputFile(namefile, in);
                string firstCol, secondCol;
                                
                while (!in.eof()) {
-                       in >> firstCol >> secondCol; gobble(in);
+                       in >> firstCol >> secondCol; m->gobble(in);
                        names[firstCol] = secondCol;
                        int size = 1;
-                       while (secondCol.find_first_of(',') != -1) { 
-                               size++;
-                               secondCol = secondCol.substr(secondCol.find_first_of(',')+1, secondCol.length());
+
+                       for(int i=0;i<secondCol.size();i++){
+                               if(secondCol[i] == ','){        size++; }
                        }
                        sizes[firstCol] = size;
                }