一个PLS的matlab程序，包括求残差矩阵求回归方程的系数，删除回归分析的常数项，求误差平方和。-A PLS matlab procedures, including seeking residual matrix coefficients of the regression equation, deleted regression constant term, seeking the error sum of squares.

第一个是标准差，用于算数学模型均值，评价模型的平均量 第二个熵，用于评价信息量的大小，熵越大信息量越大。 第三个用于pcnn模型,评价是否接近理论模型,残差越小，就越接近理论模型-The first is the standard deviation, the mathematical model is used to calculate the mean, the average amount of uation model. The second entropy, to ua

灰色预测模型GM（1,1）简单的利用matlab实现(By changing the boundary conditions of the grey forecasting model of the residual Error cent rank processing, Make the original Synergetic prediction Model precision and prediction accuracy is higher.)

蒙特卡洛算法也常用于机器学习，特别是强化学习的算法中。一般情况下，针对得到的样本数据集建立相对模糊的模型，通过蒙特卡洛方法对于模型中的参数进行选取，使之于原始数据的残差尽可能的小。从而达到建立模型拟合样本的目的。(Monte Carlo algorithm is also commonly used in machine learning, especially in reinforcement learning algorithm. In general, a relatively fuzzy