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 <jlauren...@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
>
>
> [[alternative HTML version deleted]]
>
>
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