[R] svymeans question

[James Reilly]

On 26/8/08 9:40 AM, Doran, Harold wrote:
> Computing the mean of the item by itself with svymeans agrees with the
> sample mean
>
>> mean(lower_dat$W524787, na.rm=T)
> [1] 0.8555471
>
> Compare this to the value in the row 9 up from the bottom to see it is
> different.

You might be omitting more cases due to missing values than you expect.
Does the following calculation give you the same results as in rr1?

mean( lower_dat$W524787[ apply( lower_dat[lset], 1,
     function(x) !any(is.na(x)) ) ] )


James
-- 
James Reilly
Department of Statistics, University of Auckland
Private Bag 92019, Auckland, New Zealand