Finishing nca tests

src/methods/nca/nca.cpp

@@ -37,6 +37,12 @@ void nca(	char const *optimizerType,
 {	
 	// convert the Prolog array to arma::mat
 	mat data = convertArrayToMat(dataMatArr, dataMatSize, dataMatRowNum);
+	// check if labels fit the data
+    if (data.n_cols != rawLabelsArrSize)
+    {
+        raisePrologSystemExeption("The number of data points does not match the number of labels!");
+        return;
+    }
 
 	// convert the Prolog array to arma::rowvec
 	Row< size_t > rawLabels = convertArrayToVec(rawLabelsArr, rawLabelsArrSize);