Re: [R] Table multiple answers variables

From: Orvalho Augusto <orvaquim_at_gmail.com>
Date: Tue, 15 Mar 2011 16:51:06 +0200

This is!

Thank you everyone.

Caveman

On Tue, Mar 15, 2011 at 4:24 PM, Dimitris Rizopoulos < d.rizopoulos_at_erasmusmc.nl> wrote:

> try the following:
>
> DF <- as.data.frame(matrix(sample(2, 120, TRUE), 10, 12))
>
> Results <- data.frame(
> var = names(DF),
> count = colSums(DF == 1),
> percentage = colMeans(DF == 1)
> )
>
>
> I hope it helps.
>
> Best,
> Dimitris
>
>
>
> On 3/15/2011 3:13 PM, Orvalho Augusto wrote:
>
>> I have a dataset like this:
>>
>> q25_1 q25_2 q25_3 q25_4 q25_5 q25_6 q25_7 q25_8 q25_9 q25_10 q25_11
>> q25_12
>> 1 2 2 1 1 2 1 2 1 1 2 1
>> 3
>> 2 2 2 2 1 2 1 2 1 1 2 1
>> 2
>> 3 2 1 1 1 2 1 2 1 2 2 1
>> 2
>> 4 2 2 1 1 2 2 2 1 1 1 2
>> 2
>> 5 2 2 1 1 2 3 2 1 2 2 2
>> 2
>> 6 2 2 1 1 2 2 2 1 1 1 2
>> 2
>> 7 2 2 1 1 2 3 2 1 2 2 3
>> 2
>> 8 2 2 1 1 1 1 2 1 1 1 2
>> 2
>> 9 2 2 1 1 2 2 2 1 2 2 2
>> 2
>> 10 2 2 1 1 2 2 2 1 2 1 2
>> 2
>>
>> where those q25_ variables are answers (coded 1 for Yes 2 for No). Now I
>> need a way to table counting the ones foreach variables like
>>
>> var count percentage
>> q25_1 20 80
>> q25_2 34 85
>> ...
>>
>> Is it possible ir R?
>>
>> For who used stata might use mrtab.
>>
>> Thank you
>> Orvalho
>>
>> [[alternative HTML version deleted]]
>>
>> ______________________________________________
>> R-help_at_r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide
>> http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>>
>>
> --
> Dimitris Rizopoulos
> Assistant Professor
> Department of Biostatistics
> Erasmus University Medical Center
>
> Address: PO Box 2040, 3000 CA Rotterdam, the Netherlands
> Tel: <%2B31%2F%280%2910%2F7043478>+31/(0)10/7043478
> Fax: <%2B31%2F%280%2910%2F7043014>+31/(0)10/7043014
> Web: http://www.erasmusmc.nl/biostatistiek/
>

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