[R] colMeans in a data.frame with numeric and character data

[Gabor Grothendieck]

summaryBy in the doBy package can do that.  The builtin iris data
set has 4 numeric columns and one factor column:

> library(doBy)
> summaryBy(.~1, iris, fun = mean, keep = TRUE)
  Sepal.Length Sepal.Width Petal.Length Petal.Width
1     5.843333    3.057333        3.758    1.199333


On Thu, Mar 27, 2008 at 3:22 PM, Diogo André Alagador
<dalagador at armail.pt> wrote:
> Hi all,
>
> I would like to know if it is posible by, someway, to get colMeans from
> a data.frame with numeric as well as character data, dispersed all over
> the object. Note that I would like to get colMeans neglecting character
> data.
>
> I am really in need of some function proceeding in that way…
>
> All the best
>
> Diogo André Alagador
>
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>
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