PROC MIXED By statement

[tbanh]

Hi all,

I have a dataset below and I wanted to fit a mixed model using PROC MIXED. I have a BY variable named Size, which indicates the sample size. I was wondering if there was any way I could limit the analyses to just Size = 5. So something like:

PROC MIXED data = SimulatedData;
by Size = 5;
model...;
random...;
repeated...;
run;

but the BY statement will not allow me to specify a certain condition for the variable. Does anybody have any ideas?

[ballardw]

Try

WHERE size=5;

[tbanh]

In the BY statement?

##- Please type your reply above this line. Simple formatting, no
attachments. -##

[Reeza]

If you only have one size the BY doesn't matter - you only have one set of results. 

The WHERE is its own statement. 

You our can leave the BY in, if your using it to generate titles. 

[lvm]

To be clear, use:

proc mixed data=simulateddata(where=(size=5));

...