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Retrieving locations of element of a vector or matrix
3 messages · Yemi Oyeyemi, Henrique Dallazuanna
I think that you can use: x <- sample(1:20, 10) head(sort(x), 5) #First 5 minimum values head(sort(x, decreasing = TRUE), 5) #First 5 maximum values
On 31/03/2008, Yemi Oyeyemi <gmoyeyemi at yahoo.com> wrote:
Hello all,
I have a problem of getting the locations of elements in a vector or matrix. I know one can use the command "which.min" or which.max" to get the location of minimum or maximum values in a vector. But is there any command to get the first k minimum values or maximum values in a vector.
Thanks
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______________________________________________ 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.
Henrique Dallazuanna Curitiba-Paran?-Brasil 25? 25' 40" S 49? 16' 22" O
For the position use order indeed of sort
On 31/03/2008, Henrique Dallazuanna <wwwhsd at gmail.com> wrote:
I think that you can use: x <- sample(1:20, 10) head(sort(x), 5) #First 5 minimum values head(sort(x, decreasing = TRUE), 5) #First 5 maximum values On 31/03/2008, Yemi Oyeyemi <gmoyeyemi at yahoo.com> wrote:
> Hello all, > I have a problem of getting the locations of elements in a vector or matrix. I know one can use the command "which.min" or which.max" to get the location of minimum or maximum values in a vector. But is there any command to get the first k minimum values or maximum values in a vector. > Thanks > > > --------------------------------- > You rock. That's why Blockbuster's offering you one month of Blockbuster Total Access, No Cost. > [[alternative HTML version deleted]] > > ______________________________________________ > 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. >
-- Henrique Dallazuanna Curitiba-Paran?-Brasil 25? 25' 40" S 49? 16' 22" O
Henrique Dallazuanna Curitiba-Paran?-Brasil 25? 25' 40" S 49? 16' 22" O