Inf values in a matrix

try the following:

mat <- matrix(rnorm(40), 10, 4)
mat[sample(20, 5)] <- Inf
mat
##########
index <- rowSums(!is.finite(mat)) >= 1
mat. <- mat[!index, ]

which(index)
mat.


I hope it helps.

Best,
Dimitris

----
Dimitris Rizopoulos
Ph.D. Student
Biostatistical Centre
School of Public Health
Catholic University of Leuven

Address: Kapucijnenvoer 35, Leuven, Belgium
Tel: +32/(0)16/336899
Fax: +32/(0)16/337015
Web: http://www.med.kuleuven.be/biostat/
     http://www.student.kuleuven.be/~m0390867/dimitris.htm


----- Original Message ----- 
From: <Ita.Cirovic-Donev at hypo-alpe-adria.com>
To: <r-help at stat.math.ethz.ch>
Sent: Tuesday, February 14, 2006 5:01 PM
Subject: [R] Inf values in a matrix

Hello,

I have some Inf values in a matrix, but I don't want to replace them 
with
some value but rather remove the rows that contain the Inf values. 
Also I
would like to record the rows which were removed. Is there an easy 
way to
do this instead of writing loops over the matrix? Thanks.

Ita Cirovic Donev

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