Hi Federico,

Have you checked google R graph library?

bests

milton

On Thu, Oct 29, 2009 at 3:12 PM, Federico Abascal <fedeabascal@yahoo.es>wrote:

> Hi,
>
> I am investigating a problem for which I found no solution.
> I have a matrix with two columns. I have plotted it as an x-y plot
> (plot(matrix[,1],matrix[,2])
> But this is not apropriate for my purposes. I need to group the data in
> matrix[,1] into groups (as an histogram would do). Then I have to calculate
> the average of matrix[,2] for each group.
>
> Before starting with loops and loops I would like to know if is there some
> way to do this easily with R.
>
> Thanks in advance!
> Federico
>
> ______________________________________________
> R-help@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html<http://www.r-project.org/posting-guide.html>
> and provide commented, minimal, self-contained, reproducible code.
>

	[[alternative HTML version deleted]]


