for (int i = 0; i < numSamples; i++) {
if (m->control_pressed) { return globalDiscardedFeatureIndices; }
for (int j = 0; j < numFeatures; j++) { featureVectors[j][i] = dataSet[i][j]; }
for (int i = 0; i < numSamples; i++) {
if (m->control_pressed) { return globalDiscardedFeatureIndices; }
for (int j = 0; j < numFeatures; j++) { featureVectors[j][i] = dataSet[i][j]; }