[R] count of factors

[Thomas Lumley]

On Thu, 2 Sep 1999, Laurent Gautier wrote:

> Hello,
> 
> 
> I was used to count how many times every factor is found the following
> way :
> 
> (assuming 'vect' is a vector of factors)
> tapply(vect,vect,length)

You could use table(vect) to count the number of times each level appears
in vect.


Thomas Lumley
Assistant Professor, Biostatistics
University of Washington, Seattle

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