Simplis语言下建模时遇到的两个问题:求解
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!<br /> 致谢!<br /> F_A_T_A_L E_R_R_O_R: Unable to start iterations because Fitted<br /> Covariance Matrix is not positive definite.<br /> Please provide better Starting Values.<br /> F_A_T_A_L E_R_R_O_R: For a model with NY<NE or NX<NK, Starting Values must<br /> be provided and NS must be set on the OU-line. 错误解释不是很详细吗?页:
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