说明：  //=== === === === === === === === === === === ===== //函数说明 //函数名称：Correlation //函数功能：计算最小二乘法拟合的多项式的相关系数 //使用方法：int M------拟合多项式的项数（已知条件） // double *b---拟合曲线的系数,按升次排列（已知条件） // double *x---结点x轴数据（已知条件） // double *y---结点y轴数据（已知条件） // double *Yg--结点估计值，与*y相对应，个数为m（过程变量） // int m------结点个数（已知条件） //注意事项：多项式阶数最高为10,多项式的形式为 y = b0 + b1*(x-Xavr)...
(//=== === === === === === === === === === === =====// Function that// function name: Correlation// Function: Calculation of the polynomial least squares fitting correlation coefficient// Usage: int M------ polynomial fitting the number of (known conditions)// double* b-- Fitting curve coefficient, or times by arrangement (known conditions)// double* x--- node x-axis data (known conditions)// double* y--- node y-axis data (already known conditions)// double* Yg- the estimated value of node, and* y correspond to the number for m (process variables)// int m------ node number (known conditions)// Note: polynomial order up to 10, the polynomial form of y = b0+ b1* (x-Xavr) ...)