On 11/30/2008 5:05 AM, Simone Gabbriellini wrote:
> Dear List,
>
> my problem should be easy to fix, but I couldn't find a solution by
> myself...
>
> In my survey, there is a question with 14 possible answers. None of the
> respondents choose the 13th answer, so when I table() the results, R says:
>
> 1 2 3 4 5 6 7 8 9 10 11 12 14
> 31 52 7 21 40 7 8 2 28 2 2 1 17
>
> 13 is missing... anyone knows how to tell table() that there are 14
> modalities in the answers? I tried with
>
> responseName=c("1","2","3","4","5","6","7","8","9","10","11","12","13","14")
>
>
> but all I have is:
>
> error in table....
> all the arguments must have the same length
Make the responses to the question a factor and set the levels of the
factor to include all 14 possible answers. For example:
> table(factor(rep(c('1','2'), each=7), levels=c('1','2','3')))
1 2 3
7 7 0
?factor
> thank you,
> Simone
>
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