Look at the reshape package - it allows that when using "cast"



----------------Contact
Details:-------------------------------------------------------
Contact me: Tal.Galili@gmail.com |  972-52-7275845
Read me: www.talgalili.com (Hebrew) | www.biostatistics.co.il (Hebrew) |
www.r-statistics.com (English)
----------------------------------------------------------------------------------------------




On Fri, May 7, 2010 at 12:39 PM, Phil Wieland <phwiel@gmx.de> wrote:

>
> I need to compute the mean and the standard deviation of a data set and
> would
> like to have the results in one table/data frame. I call tapply() two times
> and do then merge the resulting tables to have them all in one table. Is
> there any way to tell tapply() to use the functions mean and sd within one
> function call? Something like tapply(data$response, list(data$targets,
> data$conditions), c(mean, sd)).
>
> Thanks in advance.
> --
> View this message in context:
> http://r.789695.n4.nabble.com/Any-way-to-apply-TWO-functions-with-tapply-tp2133924p2133924.html
> Sent from the R help mailing list archive at Nabble.com.
>
> ______________________________________________
> 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
> and provide commented, minimal, self-contained, reproducible code.
>

	[[alternative HTML version deleted]]

