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locating minimum value in matrix

3 messages · Gonçalo Ferraz, Bill Venables, Chuck Cleland

Bill Venables
# 
Yes, they've thought of that.

which(BEE == min(BEE), arr.ind = TRUE)

will do it. 


Bill Venables
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-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf Of Gon?alo Ferraz
Sent: Sunday, 16 March 2008 9:47 AM
To: r-help at stat.math.ethz.ch
Subject: [R] locating minimum value in matrix

Hi,

I have a matrix BEE and want to find the row and column numbers of  
the minimum value in that matrix.
The command

which(BEE==min(BEE))

returns only one value which, I take, is the position of the minimum  
in a vector with as many elements as the matrix.

Is there a quick and simple way of getting row and column numbers?

Thanks,

Gon?alo
Chuck Cleland
#
On 3/15/2008 7:47 PM, Gon?alo Ferraz wrote:
See the second argument to which().

which(BEE==min(BEE), arr.ind=TRUE)