[R] Obtaining midpoints of class intervals produced by cut and table

[Gabor Grothendieck]

Try this:

library(gsubfn)
demo("gsubfn-cut")

and note the strapply call that converts the levels from cut to a matrix.

On Sun, Nov 8, 2009 at 4:08 PM, jose romero <jlaurentum at yahoo.com> wrote:
> Hello list:
>
> I am using "cut" and "table" to obtain a frequency table from a numeric sample vector.  The idea is to calculate mean and standard deviation on grouped data.  However, I can't extract the midpoints of the class intervals, which seem to be strings treated as factors.  How do i extract the midpoint?
>
> Thanks,
> jose loreto
>
>
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