[R] Programming puzzle...

Ron Wehrens rwehrens at sci.kun.nl
Thu Jul 13 15:37:24 CEST 2000

```Dear R guru's,

I'd like to sort the columns of a matrix according to the elements in the
first row, and in case of a tie according to the second row, etc.
In case of a 3xn matrix woppa, something like

colorder _ order(woppa[1,], woppa[2,], woppa[3,])

I just cannot seem to find a way to do this for a variable number of rows,
e.g. if woppa has 10 or 15 rows I now manually cut and paste to have 10 - 15
arguments in the order function. There has to be a clever way to do this...

Ron

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Ron Wehrens            | " In a purely metaphorical sense, I am a turnip "
Dept. of Chemometrics  |                         (W.A. Quayle)
University of Nijmegen |   Email: rwehrens at sci.kun.nl
Toernooiveld 1         |   http://www-cac.sci.kun.nl/cac/rwehrens
6525 ED Nijmegen       |   Tel: +31 24 365 2053
The Netherlands        |   Fax: +31 24 365 2653
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```