[R] Inf values in a matrix

[Dimitris Rizopoulos]

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
>
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide! 
> http://www.R-project.org/posting-guide.html
> 


Disclaimer: http://www.kuleuven.be/cwis/email_disclaimer.htm