s <- aggregate(income,list(age,sex),function(x) (svymean(~x,design=d.na)))
Since 'is.element("income", objects())' was FALSE, it was not in the search path, which it must be for "aggregate" to find it. I suggest you read or reread something like "An Introduction to R", downloadable from "www.r-project.org" -> "Manuals".
hope this helps. spencer graves
[EMAIL PROTECTED] wrote:
In a message dated 9/19/03 7:46:07 PM Pacific Daylight Time, [EMAIL PROTECTED] writes:
What do you get from the following:
is.element("income", objects())
spencer graves
is.element("income", objects())[1] FALSE
The following may give further info about why I am getting this. Design object is "d.na"
attributes(d.na)$names
[1] "cluster" "strata" "prob" "allprob" "call" "variables"
[7] "nPSU"
$class [1] "survey.design"
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