Changeset 1142 for trunk/test/ncc_test.cc

Timestamp:

Feb 25, 2008, 3:32:35 PM (15 years ago)

Author:

Markus Ringnér

Message:

Refs #335, fixed for NCC, working on KNN

File:

• trunk/test/ncc_test.cc (modified) (1 diff)

trunk/test/ncc_test.cc

@@ -159 +159 @@
 
   //////////////////////////////////////////////////////////////////////////
+  // A test of predictions when a centroid has nan for all variables that a
+  // test sample has non-zero weights for.
+  //////////////////////////////////////////////////////////////////////////
+  *error << "test of predictions using nan centroids and weighted test data\n";
+  *error << "... using EuclideanDistance" << std::endl;
+  weights1(0,0)=weights1(2,0)=0;
+  classifier::NCC<statistics::EuclideanDistance> ncc3(mlw2,target1);
+  ncc3.train();
+  ncc3.predict(mlw1,prediction1); 
+  if(!std::isnan(ncc3.centroids()(1,0))) {
+    ok=false;
+    *error << "Training failed: expected nan in centroid" << std::endl;
+  }
+  if(!(std::isnan(prediction1(0,0)) &&
+       fabs(prediction1(1,0)-sqrt(3.0))<slack_bound &&
+       fabs(prediction1(0,1)-sqrt(3.0))<slack_bound &&
+       fabs(prediction1(1,1)-sqrt(15.0))<slack_bound &&
+       fabs(prediction1(0,2)-sqrt(27.0))<slack_bound)) {  
+    ok=false; 
+    *error << "Test failed: predictions incorrect" << std::endl;
+  }
+  *error << "... using PearsonDistance" << std::endl;;
+  classifier::NCC<statistics::PearsonDistance> ncc4(mlw2,target1);
+  ncc4.train();
+  ncc4.predict(mlw1,prediction1); 
+  if(!std::isnan(ncc4.centroids()(1,0))) {
+    ok=false;
+    *error << "Training failed: expected nan in centroid" << std::endl;
+  }
+  if(!(std::isnan(prediction1(0,0)) &&
+       std::isnan(prediction1(0,2)) &&
+       std::isnan(prediction1(1,0)) &&
+       fabs(prediction1(0,1))<slack_bound &&
+       fabs(prediction1(1,2))<slack_bound &&
+       fabs(prediction1(1,3))<slack_bound &&  
+       fabs(prediction1(0,3)-2.0)<slack_bound &&
+       fabs(prediction1(1,1)-2.0)<slack_bound)) {
+    ok=false; 
+    *error << "Test failed: predictions incorrect" << std::endl;
+  }
+
+
+  //////////////////////////////////////////////////////////////////////////
   // A test of predictions using Sorlie data
   //////////////////////////////////////////////////////////////////////////