Re: [R] a more elegant approach to getting the majority level

From: Uwe Ligges <ligges_at_statistik.uni-dortmund.de>
Date: Fri 27 May 2005 - 00:56:31 EST

Rajarshi Guha wrote:

> Hi, I have a factor and I would like to find the most frequent level.
>
> I think my current approach is a bit long winded and I was wondering if
> there was a more elegant way to do it:
>
> x <- factor(sample(1:0, 5,replace=TRUE))
>
> levels(x)[ which( as.logical((table(x) == max(table(x)))) == TRUE ) ]

(== TRUE) can ALWAYS be omitted, see also:   library(fortunes)
  fortune("TRUE")

x == max(x) should be replaced by which.max(x)

as.logical() is superfluous

Hence we get:

   names(which.max(table(x)))

Uwe Ligges

> (The length of x will always be an odd number, so I wont get a tie in
> max())
>
> Thanks,
>
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R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Fri May 27 01:11:10 2005

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