中文说明：用于特征降维，特征融合，相关分析等,对于初学者具有参考意义，时间序列数据分析中的梅林变换工具，验证可用，FIR 底通和带通滤波器和IIR 底通和带通滤波器，包括单边带、双边带、载波抑制及四倍频。
English Description：
For the feature dimension reduction, feature integration, correlation, and is useful for beginners, Mellin transform of time series data analysis tools, validation is available, end of FIR-pass and band-pass filters and end of IIR-pass and band-pass filters, including unilateral, bilateral, carrier suppression and four times multiplier.