[R] Select rows of matrix

[Dimitris Rizopoulos]

try this:

mat <- matrix(rnorm(20*10), 20, 10)
mat[sample(200, 10)] <- -Inf
mat
mat[apply(is.finite(mat), 1, all), ]


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://med.kuleuven.be/biostat/
     http://www.student.kuleuven.be/~m0390867/dimitris.htm


----- Original Message ----- 
From: "Van Wyk, Jaap" <jaapvw at uj.ac.za>
To: <r-help at stat.math.ethz.ch>
Sent: Monday, August 20, 2007 2:36 PM
Subject: [R] Select rows of matrix


> Hi
>
> I would appreciate if anyone could help me with an elegant solution 
> of
> the following:
>
> I have a matrix that contain a small number of -Inf values.
>
> How can form a new matrix from the old one that excludes all the 
> rows
> with -Inf values ?
>
>
>
> Thank you.
>
> Jacob
>
>
>
> Dept of Statistics
>
> University of Johannesburg
>
> South Africa
>
>
>
>
>
>
> [[alternative HTML version deleted]]
>
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> PLEASE do read the posting guide 
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> 


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