Dear Jonas,
Try this:

with(fp, Frequenz[ which.max(AmpNorm) ] )

HTH,

Jorge


On Fri, May 8, 2009 at 8:49 AM, Jonas Stein <news@jonasstein.de> wrote:

> Hi,
>
> fp is a data frame like this
>
> ,----[ fp ]
> |    Frequenz      AmpNorm
> | 1      3322 0.0379490639
> | 2      3061 0.0476033058
> | 3      2833 0.0592954124
> | 4      2242 0.1275510204
> `----
>
> i want to find the "Frequenz" where "AmpNorm" is max.
>
> I use this line as workaround:
> PeakFreqHz = subset(fp, AmpNorm == max(AmpNorm))$Frequenz[1]
>
> Is there something nicer?
> And is there an easy way to do the same on "predict()"
>
> Thank you and kind regards,
>
> --
> Jonas Stein <news@jonasstein.de>
>
> ______________________________________________
> 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]]


