采用simplis语言建模时出现以下两个问题,不知道如何是好,请朋友们指点! 致谢! F_A_T_A_L E_R_R_O_R: Unable to start iterations because Fitted Covariance Matrix is not positive definite. Please provide better Starting Values. F_A_T_A_L E_R_R_O_R: For a model with NY<NE or NX<NK, Starting Values must be provided and NS must be set on the OU-line. |