看看对你是否有用: If a parameter is not free by default, when the parameter is mentioned in the MODEL command, it is free at the default starting value unless another starting value is specified using the asterisk (*) followed by a number or the parameter is fixed using the @ symbol followed by a number. The exception to this is that variances and residual variances for latent response variables corresponding to categorical observed dependent variables cannot be free in the Delta parameterization. They can be free in the Theta parameterization. In the Theta parameterization, scale factors for latent response variables corresponding to categorical observed dependent variables cannot be free. They can be free in the Delta parameterization. GENERAL DEFAULTS Following are the default starting values: Means/intercepts of continuous and 0 or sample mean censored observed variables depending on the analysis Means/intercepts of count observed variables 0 Thresholds of categorical observed variables 0 or determined by the sample proportions depending on the analysis Variances/residual variances of .05 or 1 depending on continuous latent variables the analysis Variances/residual variances of .5 of the sample continuous and censored observed variables variance Variances/residual variances of 1 latent response variables for categorical observed variables Scale factors 1 Loadings for indicators of continuous 1 latent variables All other parameters 0 For situations where starting values depend on the analysis, the starting values can be found using the TECH1 option of the OUTPUT command. |