多分类学习及神经网络，机器学习相关，基于matlab计算-ex3.m- Octave scr ipt that will help step you through part 1

ex3 nn.m- Octave scr ipt that will help step you through part 2

ex3data1.mat- Training set of hand-written digits

ex3weights.mat- Initial weights for the neural network exercise

submitWeb.m- Alternative submission scr ipt

submit.m- Submission scr ipt that sends your solutions to our servers

displayData.m- Function to help visualize the dataset

fmincg.m- Function minimization routine (similar to fminunc)

sigmoid.m- Sigmoid function

[?] lrCostFunction.m- Logistic regression cost function

[?] oneVsAll.m- Train a one-vs-all multi-class classier

[?] predictOneVsAll.m- Predict using a one-vs-all multi-class classier

[?] predict.m- Neural network prediction function