An error occurred while attempting to fit the model. 拟合模型时出现一个错误。

The sample moment matrix is not positive definite. It could fail to be positive definite for any of the following reasons: 样本协方差矩阵是非正定矩阵。由于下列原因不能正定。

1.The sample covariance matrix or the sample correlation matrix contains a data entry error.样本协方差矩阵或样本相关矩阵包含的数据有误。

2.The ovserved variables are linearly dependent (perhaps because the sample size is too small).观察变量因为样本太少产生线性相依的情形。

3.The sample covariance matrix or sample correlation matrix was computed from incomplete data using the method of ‘pairwise deletion’.使用成对删除法时，从不完全的数据估计出样本协方差矩阵或样本相关矩阵。

4.The sample correlation matrix contains correlation coefficients other than product moment correlations (such as tetrachoric correlations). 与产生动差相关相比，样本相关矩阵包含其他无关相关系数。

For maximum likelihood estimation only, it may be appropriate to check “Allow non-positive definite samples covariance matrices” in the “Analysis Properties” window, or to use the NonPositive method. 用最大似然法估计，应在“分析属性窗”口中适度检查“允许非正定样本协方差矩阵”，或使用非正定的方法。

您好，我在做结构方程模型的时候出现了一些问题，想咨询您一下，有偿，我实在不知道咋弄了，我的邮箱2265479541@qq.com

你好，请问问题解决了吗？我也遇到了相同的问题，能帮我解答一下，是什么原因吗？