[R] short way

[Jan Goebel]

Hello,
this works well:

> tmat <- matrix(rep(0,3*3),ncol=3)
> tmat
     [,1] [,2] [,3]
[1,]    0    0    0
[2,]    0    0    0
[3,]    0    0    0
> tmat[tmat==0]<-1
> tmat
     [,1] [,2] [,3]
[1,]    1    1    1
[2,]    1    1    1
[3,]    1    1    1

On Tue, 29 Aug 2000, Pesl Thomas wrote:

> i want to replace certain values of a matrix.
> i know how to replace them when the values are in a vector.
> i tried the same way for a matrix and got this answer:
> 
> la[la==0]<-1
> Error in [<-.data.frame(*tmp*, la == 0, value = 1) : 
>         matrix subscripts not allowed in replacement

maybe you don't really use a matrix?


Jan Goebel
-- 
-----------------------------------
Jan Goebel (mailto:jgoebel at diw.de)

DIW German Institute for Economic Research
SOEP
Königin-Luise-Str. 5
D-14195 Berlin
Germany

phone: 49 30 89789-377
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