@Test
public void testGradientWithAsList() {
MultiLayerNetwork net1 = new MultiLayerNetwork(getConf());
MultiLayerNetwork net2 = new MultiLayerNetwork(getConf());
net1.init();
net2.init();
DataSet x1 = new IrisDataSetIterator(1, 150).next();
DataSet all = new IrisDataSetIterator(150, 150).next();
DataSet x2 = all.asList().get(0);
// x1 and x2 contain identical data
assertArrayEquals(asFloat(x1.getFeatureMatrix()), asFloat(x2.getFeatureMatrix()), 0.0f); // OK
assertArrayEquals(asFloat(x1.getLabels()), asFloat(x2.getLabels()), 0.0f); // OK
assertEquals(x1, x2); // Fails, DataSet doesn't override Object.equals()
// Set inputs/outputs so gradient can be calculated:
net1.feedForward(x1.getFeatureMatrix());
net2.feedForward(x2.getFeatureMatrix());
((OutputLayer) net1.getLayers()[1]).setLabels(x1.getLabels());
((OutputLayer) net2.getLayers()[1]).setLabels(x2.getLabels());
net1.gradient(); // OK
net2.gradient(); // IllegalArgumentException: Buffers must fill up specified length 29
}
