Re: [R] simple question with table()

From: Dimitris Rizopoulos <d.rizopoulos_at_erasmusmc.nl>
Date: Sun, 30 Nov 2008 11:19:04 +0100

you have to use a factor, e.g.,

x <- sample((1:14)[-13], 100, TRUE)
f <- factor(x, levels = 1:14)
table(f)

I hope it helps.

Best,
Dimitris

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
>
> thank you,
> Simone
>
> ______________________________________________
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>

-- 
Dimitris Rizopoulos
Assistant Professor
Department of Biostatistics
Erasmus Medical Center

Address: PO Box 2040, 3000 CA Rotterdam, the Netherlands
Tel: +31/(0)10/7043478
Fax: +31/(0)10/7043014

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Received on Sun 30 Nov 2008 - 10:31:24 GMT

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