本程序训练了多个神经网络（它们的隐藏层神经元数量不同），并允许用户选择性能最好的网络。
The program trains several neural networks (that vary in their number of hidden layer neurons) and enables users to pick the best.
该程序分别使用名为Inputs1.txt和Targets1.txt文件中包含的输入和目标数据来训练网络。
The program trains the networks using input and target data contained in files named Inputs1.txt and Targets1.txt respectively.
程序将提供的数据随机分成3部分：70%用于训练，15%用于验证，15%用于测试。
The program randomly splits the supplied data into 3 portions: 70% for training, 15% for validation, and 15% for testing.
用户可以选择在第68行到第70行中更改以上数据的比例。
The user has the option to change this proportioning in lines 68 to 70.
用户还可以选择使用自己的测试数据：这些数据应与Inputs2.txt和Targets2.txt相同的格式保存。
The user also has the option to use his/her own test data: these should be saved in same format as Inputs2.txt and Targets2.txt
当程序运行时，将训练100个不同的网络：各网络的隐藏层神经元数量不同。
When the program runs, it trains 100 different networks: the networks differ in their number of hidden layer neurons.
生成的神经网络保存在名为networks的文件夹中，该文件夹与运行此程序的文件夹相同。
The networks generated are saved in in a folder named networks, within the same folder where this program is run.
保存为net1的网络有1个隐藏层神经元，net2有2个，net3有3个，net4有4个，…
The network saved as net1 has 1 hidden layer neuron, net2 has 2, net3 has 3, net4 has 4,…
用户可以将第65行中的值1:100更改为所需的隐藏层神经元个数。
Users may change the values 1:100 in line 65 to their desired values.
trainlm采用了Levenberg-Marquardt算法进行训练。
Training is done using the Levenberg-Marquardt algorithm, trainlm.
用户也可以通过修改第62行来更改自己需要的算法。
Users may change to their desired algorithm by changing line 62.
该程序还将计算得到均方根误差（RMSEs）保存在一个名为rmse.txt的文件中。
The program also computes and saves root-mean-squared-errors (RMSEs) in a file named rmse.txt.
文件中的数据分为3列：第1列为隐藏层神经元的数量，第2列为根据随机15%测试数据计算的RMSE，第3列为根据用户自己的测试数据计算的RMSE。
Data in the file is in 3 columns: column 1 for the number of hidden layer neurons, column 2 for the RMSE computed on the random 15% test data, and column 3 for the RMSE computed on the user’s own test data.
此文件上的数据将指导用户决定哪种神经网络的性能最好。
The data on this file guides the user to decide which of the networks is best.
具有较小RMSE的网络性能更好，尤其是对于根据用户自己的测试数据计算的RMSE，这些数据超出了用于训练的数据覆盖范围。
Networks with smaller RMSEs are better, especially for the RMSEs computed on the user’s own test data which is outside the range of data used for the training.
关于如何使用RMSE来选择最优网络的更详细的指南包含在本程序作者编写的一本书中，书名为“Computer Neural Networks on MATLAB”。
More detailed guide on how to use the RMSEs to choose an optimal network is contained in a book authored by the writer of this program and titled “Computer Neural Networks on MATLAB”。
完整源码下载地址：
http://page2.dfpan.com/fs/5lcej2c21929116e3a7/
更多精彩文章请关注微信号：