comparison maths/CosineDistance.cpp @ 74:769da847732b

* A few fixes prompted by vamp-plugin-tester

 
 double CosineDistance::distance(const vector<double> &v1,
                                 const vector<double> &v2)
 {
     dist = 1.0; dDenTot = 0; dDen1 = 0; dDen2 = 0; dSum1 =0;
+    double small = 1e-20;
 
     //check if v1, v2 same size
     if (v1.size() != v2.size())
     {
         cerr << "CosineDistance::distance: ERROR: vectors not the same size\n";

         {
             dSum1 += v1[i]*v2[i];
             dDen1 += v1[i]*v1[i];
             dDen2 += v2[i]*v2[i];
         }
-        dDenTot = sqrt(fabs(dDen1*dDen2));
-        if(dDenTot == 0)
-        {
-            cerr << "CosineDistance::distance: WARNING: dividing by zero in cosine dist\n";
-            return 1.0;
-        }
-	
+        dDenTot = sqrt(fabs(dDen1*dDen2)) + small;
         dist = 1-((dSum1)/dDenTot);
         return dist;
     }
 }