pls_toolbox工具箱可以解决统计领域多个问题的matlab求解问题，比如偏最小二乘问题、多向主元问题、主元分析等等，集成的工具箱方便，而且不需要验证码！(The pls_toolbox toolbox can solve the MATLAB problem of multiple problems in the field of statistics, such as partial least squares, multidirectional principal element,