在用lavaan做东东,但是最后summary给出的variance和covariance提取不了,我想用summary(fit1)$Variances,但是variances并不能提取出来,显示的结果是null。求大神帮一下,非常感谢
> summary(fit1)
lavaan (0.5-16) converged normally after 79 iterations
Used Total
Number of observations 1581 1667
Number of missing patterns 167
Estimator ML
Minimum Function Test Statistic 376.672
Degrees of freedom 31
P-value (Chi-square) 0.000
Parameter estimates:
Information Observed
Standard Errors Standard
Estimate Std.err Z-value P(>|z|)
Latent variables:
i =~
bmi01 1.000
bmi02 1.000
bmi03 1.000
bmi05 1.000
bmi06 1.000
bmi07 1.000
bmi08 1.000
bmi09 1.000
s =~
bmi01 0.000
bmi02 1.000
bmi03 2.000
bmi05 4.000
bmi06 5.000
bmi07 6.000
bmi08 7.000
bmi09 8.000
Covariances:
i ~~
s 0.073 0.073 0.989 0.322
Intercepts:
bmi01 0.000
bmi02 0.000
bmi03 0.000
bmi05 0.000
bmi06 0.000
bmi07 0.000
bmi08 0.000
bmi09 0.000
i 25.630 0.139 184.034 0.000
s 0.351 0.013 26.192 0.000
Variances:
bmi01 2.439 0.194
bmi02 4.190 0.218
bmi03 4.766 0.234
bmi05 5.774 0.259
bmi06 8.212 0.352
bmi07 3.798 0.190
bmi08 2.927 0.169
bmi09 3.305 0.209
i 28.492 1.089
s 0.190 0.010