R help - Sep 2011 - svytable including NAs

Dear all

I'm creating two way tables based on weighted survey data using svytable and
want to include NAs as a level in the table.
For unweighted data I use table(..., useNA="ifany"). Is there any
equivalent for svytable?

If not, is there a solution using a different function?

Thanks
Tim 


-- 

Tim Elwell-Sutton
The University of Hong Kong
Office:  3906 2053
Mob: 6084 5654

On Sep 14, 2011, at 6:12 AM, tesutton wrote:
> Dear all
>
> I'm creating two way tables based on weighted survey data using  
> svytable and want to include NAs as a level in the table.
> For unweighted data I use table(..., useNA="ifany"). Is there any
> equivalent for svytable?
>
> If not, is there a solution using a different function?
I don't know the answer to the first question, but my first experiment  
to solve would be to redefine your factors with:

  fac <- factor(fac, exclude=NULL)
    ... so that you get an <NA> level and label rather than having NAs.

-- 

David Winsemius, MD
West Hartford, CT