[R] delete "-character from strings in matrix

Liaw, Andy andy_liaw at merck.com
Sun Jun 12 13:42:17 CEST 2005


Please define "does not work".  Here's what I get:

> m <- matrix(paste(letters[1:4], "does not work."), 2, 2)
> m
     [,1]               [,2]              
[1,] "a does not work." "c does not work."
[2,] "b does not work." "d does not work."
> gsub("does not work.", "", m)
[1] "a " "b " "c " "d "
> structure(gsub("does not work.", "", m), dim=dim(m))
     [,1] [,2]
[1,] "a " "c "
[2,] "b " "d "

R-2.1.0 on WinXPPro.

Andy 

> From: Werner Wernersen
> 
> Hi!
> 
> I have strings where occasionally some "-chars occur.
> How can I delete these chars?
> 
> I tried it with gsub but using "" as replace does not
> work.
> 
> Thanks a lot for any hint!
> Regards,
>    Werner
> 
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