联立方程组的r平方怎么计算？

请问联立方程组的r平方如何计算？

有个说法如下：
the formula is as follows:

1- det[ee]/det[yy]  where [ee] is the covariance matrix of residuals of system and [yy] is the covariance matrix of all left hand (dependent) variables of system, and det is the determinant.  So for your alpha system where you have a system of 24 equations, the [ee] and [yy] matrixes each has dimension 24x24.

不知道是不是正确，以及YY的异方差矩阵是否就是指的样本本身？与系统估计无关么？

求解！

顶起啊，同学们，帮个忙啊

同问啊。顶