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

From: Grey Moran <grey.moran_at_gmail.com>
Date: Fri, 07 Nov 2008 16:48:52 -0500

On Fri, Nov 7, 2008 at 4:46 PM, Grey Moran <grey.moran_at_gmail.com> wrote:
> Thanks to all who replied - lots of good ideas.
> The one I prefered at the end was:
> junk[junk > 5] <- 5
>
> Grey
>
> On Fri, Nov 7, 2008 at 4:38 PM, Gabor Grothendieck
> <ggrothendieck_at_gmail.com> wrote:
>> That should be pmin:
>>
>> On Fri, Nov 7, 2008 at 4:25 PM, Gabor Grothendieck
>> <ggrothendieck_at_gmail.com> wrote:
>>> 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
>>>>
>>>> ______________________________________________
>>>> R-help_at_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.
>>>>
>>>
>>
>



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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. Received on Fri 07 Nov 2008 - 21:50:42 GMT

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