Matlab 自定义窗函数的幅频分析，包括矩形窗，三角窗，汉宁窗，汉明窗等-Matlab customize the width of the window function frequency analysis, including rectangular windows, triangular windows, Hanning window, Hamming window, etc.

包括面积、周长、矩形度、伸长度，可以广泛的应用于数据预测及数据分析,基于matlab平台实现。- Including the area, perimeter, rectangular, elongation, Can be widely used in data analysis and forecast data, Based on matlab platform.