[R] ordered matrix question

[Mendiburu, Felipe (CIP)]

Juan Pablo,

X is data.frame or matrix
X <- X[order(X[,4]),]
options see help(order)

Felipe de Mendiburu

-----Original Message-----
From: r-help-bounces at stat.math.ethz.ch
[mailto:r-help-bounces at stat.math.ethz.ch]On Behalf Of Juan Pablo Fededa
Sent: Tuesday, February 27, 2007 12:47 PM
To: R-help at stat.math.ethz.ch
Subject: [R] ordered matrix question


Hi all,

Is there an easy way to generate an object wich will be the same matrix, but
ordered by de cfp value?
The data frame consists of numeric columns:
"Block"    "X"    "Y"    "cfp"    "yfp"    "ID"
0    524    244    213.41795    7.18482109    1
0    556    270    65.383904    9.568372661    2
0    528    316    40.789474    5.573732175    3
0    642    432    135.81734    12.40134427    4
0    716    430    34.359135    3.944923077    5
0    894    362    109.63158    3.197160316    6
0    958    130    63.98452    3.396452004    7
0    506    92    83.513931    9.105496856    8
0    476    464    91.674919    9.178089414    9
0    364    426    44.13932    2.068334364    10

Thanks in advance,


Juan Pablo

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