aerovulpe
/ nnCostFunction.m
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August 29, 2015 14:16
— forked from denzilc/nnCostFunction.m
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| function [J grad] = nnCostFunction(nn_params, ... | |
| input_layer_size, ... | |
| hidden_layer_size, ... | |
| num_labels, ... | |
| X, y, lambda) | |
| %NNCOSTFUNCTION Implements the neural network cost function for a two layer | |
| %neural network which performs classification | |
| % [J grad] = NNCOSTFUNCTON(nn_params, hidden_layer_size, num_labels, ... | |
| % X, y, lambda) computes the cost and gradient of the neural network. The | |
| % parameters for the neural network are "unrolled" into the vector |