Dear Courtney,
I think that you're confused about how to use the subset argument to svyglm()
and about what the subset() function returns. The subset argument should be a
logical expression, evaluating to TRUE or FALSE for each case; subset() returns
a data set (e.g., a "survey.design" object).
Here's an example adapted from ?svyglm:
------------------- snip-------------------
data(api)
dstrat<-svydesign(id=~1,strata=~stype, weights=~pw, data=apistrat, fpc=~fpc)
summary(svyglm(api00~ell+meals+mobility, design=dstrat))
summary(svyglm(api00~ell+meals+mobility, design=dstrat, subset = pcttest > 90))
summary(svyglm(api00~ell+meals+mobility, design=subset(dstrat, subset = pcttest
> 90)))
------------------- snip-------------------
The last two commands produce the same results.
I hope this helps,
John
-----------------------------
John Fox, Professor
McMaster University
Hamilton, Ontario
Canada L8S 4M4
Web: socserv.mcmaster.ca/jfox
> -----Original Message-----
> From: R-help [mailto:r-help-boun...@r-project.org] On Behalf Of Courtney
> Benjamin
> Sent: September 23, 2016 11:01 PM
> To: r-help@r-project.org
> Subject: [R] Svyglm Error in Survey Package
>
> In attempting to use the svyglm call in the R Survey Package, I am receiving
> the
> error: Error in pwt[i] : invalid subscript type 'list'
>
> I have not been able to find a lot of information on how to resolve the error;
> one source advised it was related to how the subsetting command was
> executed.
>
> This was my initial attempt:
>
> mc1 <-
> svyglm(F3ATTAINMENT~F1SES2QU+F1RGPP2,elsq1ch_brr,subset(elsq1ch_brr,
> BYSCTRL==1 & G10COHRT==1),na.action)
> summary(mc1)
> This was my second approach trying to change up how I had subsetted the
> data:
> summary(mc1)
> samp1 <- subset(elsq1ch_brr,BYSCTRL==1 & G10COHRT==1)
> dim(samp1)
> mc1 <-
> svyglm(F3ATTAINMENT~F1SES2QU+F1RGPP2,elsq1ch_brr,subset=samp1,na.ac
> tion)
> summary(mc1)?
>
> Both attempts resulted in the same error stated above. Any advisement in how
> to resolve this error would be greatly appreciated.
> Sincerely,
> Courtney Benjamin
>
> ?
>
>
>
> Courtney Benjamin
>
> Broome-Tioga BOCES
>
> Automotive Technology II Teacher
>
> Located at Gault Toyota
>
> Doctoral Candidate-Educational Theory & Practice
>
> State University of New York at Binghamton
>
> cbenj...@btboces.org<mailto:cbenj...@btboces.org>
>
> 607-763-8633
>
> [[alternative HTML version deleted]]
>
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