/***********************************************************************/
-int ReadCluster::read(NameAssignment* nameMap){
+int ReadCluster::read(NameAssignment*& nameMap){
try {
if (format == "phylip") { convertPhylip2Column(nameMap); }
}
/***********************************************************************/
-int ReadCluster::convertPhylip2Column(NameAssignment* nameMap){
+int ReadCluster::convertPhylip2Column(NameAssignment*& nameMap){
try {
//convert phylip file to column file
map<int, string> rowToName;