[R] Finding the column with the maximum value by row
smartpink111 at yahoo.com
Wed Jul 18 00:17:43 CEST 2012
 3 1 3
----- Original Message -----
From: Christopher Desjardins <cddesjardins at gmail.com>
To: r-help at r-project.org
Sent: Tuesday, July 17, 2012 6:03 PM
Subject: [R] Finding the column with the maximum value by row
Let's say I have the following data:
[,1] [,2] [,3]
[1,] 1 2 4
[2,] 4 2 1
[3,] 1 2 4
What syntax should I use to get R to tell me the column that corresponds to
the maximum value for each row?
For my example, I would like to get a vector that says 3, 1, 3 because the
maximum value for row 1 is in column 3, the maximum value for row 2 is in
column 1, and the maximum value for row 3 is in column 3.
Does that make sense?
Please cc me if you reply!
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