cascade: remove neuron

include/NeuralNetwork/Cascade/Network.h

@@ -58,6 +58,18 @@ namespace NeuralNetwork {
 					return std::vector<std::shared_ptr<NeuronInterface>>(_neurons.end()-_outputs,_neurons.end());
 				}
 
+				void removeLastHiddenNeuron() {
+					_neurons.erase(_neurons.begin()+_neurons.size()-outputs()-1);
+
+					std::size_t maxIndexOfHiddenNeuron = _neurons.size() - outputs();
+
+					std::size_t maxIndexOfNeuron = _neurons.size() - 1;
+
+					for(std::size_t i = 0; i < _outputs; i++) {
+						_neurons[maxIndexOfNeuron-i]->setInputSize(maxIndexOfHiddenNeuron);
+					}
+				}
+
 				std::shared_ptr<NeuronInterface> addNeuron() {
 					_neurons.push_back(std::make_shared<Neuron>());
 					auto neuron = _neurons.back();