pat's edits prior to v.1.5

[mothur.git] / simpson.cpp

diff --git a/simpson.cpp b/simpson.cpp
index d260800a9f80368295c2c1a099dd0a3dd3af8a30..8e176cf926f07e899d3a965500a991bfde45f3a1 100644 (file)
--- a/simpson.cpp
+++ b/simpson.cpp
@@ -19,8 +19,8 @@ EstOutput Simpson::getValues(SAbundVector* rank){
                double ci = 0;
        
                double maxRank = (double)rank->getMaxRank();
-               int sampled = rank->getNumSeqs();
-               int sobs = rank->getNumBins();
+               double sampled = (double)rank->getNumSeqs();
+               double sobs = (double)rank->getNumBins();
        
                double firstTerm = 0;
                double secondTerm = 0;
@@ -31,8 +31,8 @@ EstOutput Simpson::getValues(SAbundVector* rank){
                        for(int i=1;i<=maxRank;i++){
                                simnum += (double)(rank->get(i)*i*(i-1));
                        }
-               
-                       simpson = simnum / (double)(sampled*(sampled-1));
+                       
+                       simpson = simnum / (sampled*(sampled-1));
                
                        for(int i=1;i<=maxRank;i++){
                                double piI = (double) i / (double)sampled;
@@ -40,7 +40,7 @@ EstOutput Simpson::getValues(SAbundVector* rank){
                                secondTerm += rank->get(i) * pow(piI, 2);
                        }
                
-                       double var = (4.0 / (double)sampled) * (firstTerm - secondTerm*secondTerm);
+                       double var = (4.0 / sampled) * (firstTerm - secondTerm*secondTerm);
                        ci = 1.95 * pow(var, 0.5);
                }