svymean w/ svyby is working for me...
> svyby(~visitcnt, ~agegrp3.f, svymean, design=svydes)
agegrp3.f visitcnt se.visitcnt
18-44 18-44 8.755552 0.4953235
45-64 45-64 10.131555 0.5347806
65+ 65+ 9.588802 0.4323629
svyquantile is working for me...
> svyquantile(~visitcnt, quantiles=c(.25, .5, .75), ties="rounded",
> design=svydes)
0.25 0.5 0.75
visitcnt 3.021468 6.039823 11.49518
svyquantile w/ svyby is bombing on me...
> svyby(~visitcnt, ~agegrp3.f, svyquantile, quantiles=c(.25, .5, .75),
> ties="rounded", design=svydes)
Error in object$coefficients : $ operator is invalid for atomic vectors
i'm not sure what i'm missing/not understanding.
any help would be much appreciated.
thanks,
marc zodet
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