[R] easy way to cap a data frame to a max value

Gabor Grothendieck ggrothendieck at gmail.com
Fri Nov 7 22:25:53 CET 2008


Assuming the data frame is all numeric:

DF[] <- pmax(10, unlist(DF))


On Fri, Nov 7, 2008 at 4:16 PM, Grey Moran <grey.moran at gmail.com> wrote:
> Hello,
>
> I have some rather large matrices.  Is there a way (without having to
> loop) to cap all the values of a data frame to a given ceiling?
> E.g.
> junk <- cbind(c(1,2,3,4,5),c(2,4,6,8,10))
>> junk
>     [,1] [,2]
> [1,]    1    2
> [2,]    2    4
> [3,]    3    6
> [4,]    4    8
> [5,]    5   10
>
>>" replace anything over the value of 5 with 5..."
>
> Thank you all,
>
> Grey
>
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