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» 求助:结果方程报错not positive definite
mischina
发表于 2011-7-2 17:29
求助:结果方程报错not positive definite
各位大侠,小弟在用sas跑结构方程模型的时候,日志中报错:Sample covariance or correlation matrix is not positive definite. ML or GLS estimates cannot be computed.请教一下需要怎么处理
angel
发表于 2011-7-2 17:34
無法求反矩陣,檢視看是有些變項的相關太高
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