Cursera: machine learning ex4.

machine_learning/mlclass-ex4-008/mlclass-ex4/predict.m

@@ -0,0 +1,20 @@
+function p = predict(Theta1, Theta2, X)
+%PREDICT Predict the label of an input given a trained neural network
+%   p = PREDICT(Theta1, Theta2, X) outputs the predicted label of X given the
+%   trained weights of a neural network (Theta1, Theta2)
+
+% Useful values
+m = size(X, 1);
+num_labels = size(Theta2, 1);
+
+% You need to return the following variables correctly 
+p = zeros(size(X, 1), 1);
+
+h1 = sigmoid([ones(m, 1) X] * Theta1');
+h2 = sigmoid([ones(m, 1) h1] * Theta2');
+[dummy, p] = max(h2, [], 2);
+
+% =========================================================================
+
+
+end