第8章 数据拟合（此程序是用matlab编写的，此代码已经通过本人测试）-Chapter 8 data fitting (This procedure is used matlab, this code has passed my test)

模式分类中基于BP神经网络的曲线拟合；根据BP神经网络的模型，调用MATLAB工具箱函数，通过对样本数据进行训练，对测试样本数据进行成功的预测，预测的输出值与实际值之间几乎没有偏差。-Pattern classification of curve fitting based on BP neural network Based on BP neural network model, call MATLAB toolbox function, through the training sampl