Hi,
i got an error message while using method=type3 in proc mixed, saying that 'Error: Type 3 estimation is not available with this model.'.
i don't know what is the reason behind this error. well here i'm using Area under effective curve data and model was
proc mixed data=study.detectors7 method=type3;
classes sub trt;
model data= trt/ ddfm=sat;
random trt/type=FA0(2) sub=sub g;
repeated/group=trt sub=sub;
estimate 'T vs R' trt -1 1/cl alpha=0.1;
run;
version: SAS Enterprise guide 6.1
Here is the documentation for PROC MIXED. Click on the "PROC MIXED" statement and scroll down to the METHOD= option. There you will see
The METHOD=TYPEn specifications apply only to variance component models with no SUBJECT= effects and no REPEATED statement.
The error occurs because your model includes a REPEATED statement and subject effects.
If you want to model the repeated and random effects, consider using METHOD=REML (the default) or METHOD=ML (maximum likelihood).
Here is the documentation for PROC MIXED. Click on the "PROC MIXED" statement and scroll down to the METHOD= option. There you will see
The METHOD=TYPEn specifications apply only to variance component models with no SUBJECT= effects and no REPEATED statement.
The error occurs because your model includes a REPEATED statement and subject effects.
If you want to model the repeated and random effects, consider using METHOD=REML (the default) or METHOD=ML (maximum likelihood).
Available on demand!
Missed SAS Innovate Las Vegas? Watch all the action for free! View the keynotes, general sessions and 22 breakouts on demand.
Learn the difference between classical and Bayesian statistical approaches and see a few PROC examples to perform Bayesian analysis in this video.
Find more tutorials on the SAS Users YouTube channel.