求问~~~在拟合混合模型中,得到的结果是输入summary()后,得到了
"Linear mixed-effects model fit by REML
Data: zrxs.mixed
AIC BIC logLik
-342.2206 -296.9215 182.1103
Random effects:
Formula: ~1 | group
(Intercept) Residual
StdDev: 0.4319916 0.284318
Variance function:
Structure: Different standard deviations per stratum
Formula: ~1 | group
Parameter estimates:
8 4 1 6 7 3 2
1.0000000 0.3877402 0.5283822 0.4166237 0.5540116 0.5470857 0.5662509
5
0.4745470
Fixed effects: LogD ~ LogN
Value Std.Error DF t-value p-value
(Intercept) 6.093625 0.20037051 447 30.41178 0
LogN -0.494819 0.01779109 447 -27.81274 0
Correlation:
(Intr)
LogN -0.646
Standardized Within-Group Residuals:
Min Q1 Med Q3 Max
-3.4323233 -0.6251897 0.0381965 0.6996349 2.4498960
Number of Observations: 456
Number of Groups: 8
"
请问怎么判定模型拟合效果的好坏,怎么得出LRT?
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