Try this:

prop.table(table(subset(x, Height > 60, select = Male:Female)))


On Sun, May 2, 2010 at 2:58 PM, Geoffrey Smith <gps@asu.edu> wrote:

> Suppose my data looks like this:
>
> Obs,     Male,     Female,     Height
> 1,          T,           F,               66
> 2,          F,           T,               64
> 3,          T,           F,               59
> 4,          T,           F,               55
> 5,          F,           T,               62
> 6,          T,           F,               67
> 7,          T,           F,               58
> 8,          T,           F,               57
> 9,          F,           T,               58
> 10,        T,           F,               62
>
> How can I find the percentage of Males with a Height of over 60?  Likewise,
> how can I find the percentage of Females with a Height of over 60?
>
> Thank you very much.
>
> Geoff
>
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>
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>



-- 
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O

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