Hello,
I am using the class statement in proc surveyreg in order to construct industry dummy variables. However, sometimes some industries don't contain any observations or too few. Then I cannot use the lsmeans statement for instance. Is it possible to automatically exclude one group within the class statement when the group is empty?
You must exclude industries before running proc surveyreg. You can do that by 1) creating an intermediate dataset, 2) by creating an intermediate data view, or 3) by adding a WHERE clause, either as a dataset option or as a WHERE statement, when calling proc surveyreg.
You must exclude industries before running proc surveyreg. You can do that by 1) creating an intermediate dataset, 2) by creating an intermediate data view, or 3) by adding a WHERE clause, either as a dataset option or as a WHERE statement, when calling proc surveyreg.
Because of the weighting, it becomes difficult to implement what Milliken and Johnson refer to as a "means model" in PROC SURVEYREG. However, you could give it a try--fitting what is essentially a saturated one-way model--and then use LSMESTIMATE statements to construct tests and comparisons of interest.
Steve Denham
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