X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=sharedmorisitahorn.cpp;h=bd4923f32ddf4337ce6f8570fd57fcd199ccaf6f;hb=2bb9267aa4b4ecdf8488b06605cc9f3f36fa4332;hp=f9c1b6be1035ef85e6ea0e2c25be118cd99b9c97;hpb=510b1cfc25cd79391d6973ca20c5ec25fb1bb3b2;p=mothur.git

diff --git a/sharedmorisitahorn.cpp b/sharedmorisitahorn.cpp
index f9c1b6b..bd4923f 100644
--- a/sharedmorisitahorn.cpp
+++ b/sharedmorisitahorn.cpp
@@ -14,9 +14,9 @@ EstOutput MorHorn::getValues(vector<SharedRAbundVector*> shared) {
 	try {	
 		data.resize(1,0);
 		
-		int Atotal, Btotal, tempA, tempB;
+		double Atotal, Btotal, tempA, tempB;
 		Atotal = 0; Btotal = 0; 
-		float  morhorn, sumSharedA, sumSharedB, a, b, d;
+		double  morhorn, sumSharedA, sumSharedB, a, b, d;
 		morhorn = 0.0; sumSharedA = 0.0; sumSharedB = 0.0; a = 0.0; b = 0.0; d = 0.0;
 		
 		//get the total values we need to calculate the theta denominator sums
@@ -26,31 +26,29 @@ EstOutput MorHorn::getValues(vector<SharedRAbundVector*> shared) {
 			Btotal += shared[1]->getAbundance(i);
 		}
 		
-		//calculate the theta denominator sums
+		//calculate the denominator sums
 		for (int j = 0; j < shared[0]->size(); j++) {
 			//store in temps to avoid multiple repetitive function calls
 			tempA = shared[0]->getAbundance(j);
 			tempB = shared[1]->getAbundance(j);
+			float relA = tempA / Atotal;
+			float relB = tempB / Btotal;
 			
-			a += tempA * tempA;
-			b += tempB * tempB;
-			d += tempA * tempB;
+			a += relA * relA;
+			b += relB * relB;
+			d += relA * relB;
 		}
 
-		a /= double(Atotal * Atotal);
-		b /= double(Btotal * Btotal);
-		d /= double(Atotal * Btotal);
-		
-		morhorn = (2 * d) / (a + b);
-		
-		if (isnan(morhorn) || isinf(morhorn)) { morhorn = 0; }
+		morhorn = 1- (2 * d) / (a + b);
+
+		if (isnan(morhorn) || isinf(morhorn)) { morhorn = 1; }
 		
 		data[0] = morhorn;
 		
 		return data;
 	}
 	catch(exception& e) {
-		errorOut(e, "MorHorn", "getValues");
+		m->errorOut(e, "MorHorn", "getValues");
 		exit(1);
 	}
 }