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96218
2010 Mar 10
1
Strange result in survey package: svyvar
Hi R users,
I'm using the survey package to calculate summary statistics for a large
health survey (the Demographic and Health Survey for Honduras, 2006), and
when I try to calculate the variances for several variables, I get negative
numbers. I thought it may be my data, so I ran the example on the help
page:
data(api)
## one-stage cluster sample
dclus1<-svydesign(id=~dnum, weights=~pw,