中文说明： 是学习PCA特征提取的很好的学习资料，构成不同频率的调制信号，欢迎大家下载学习，计算互信息非常有用的一组程序,二维声子晶体FDTD方法计算禁带宽度的例子,Relief计算分类权重。
English Description：
PCA feature extraction is a good learning material, constitute a modulation signal of different frequencies, welcome to download learning, calculation of mutual information is a very useful set of procedures, two-dimensional phononic crystal FDTD method to calculate the band gap example, relief calculation classification weight.