[R] R sub query

[Petr PIKAL]

Hi

I am not at all an expert in regular expressions but

gsub("^[[:punct:]]+[[:digit:]]+:", "",m)

does the output you want. Maybe by chance :-)

Regards
Petr

> 
> Hello,
> I would like to substitute a substring of characters defined by a 
specific
> start and end sequence. 
> i.e. in the example matrix below, I would like to substitute ".:X:" with 

> "", where X varies in sequence...
>  
> m<-matrix(c(".:0:0,0", ".:2:0,2", ".:194:193,1", ".:56:0,56", 
".:58:50,8",
> ".:13:0,13",  ".:114:114,0", ".:75:75,0"), nrow=2)
>  
> output required:
>      [,1]      [,2]          [,3]        [,4]         
> [1,] "0,0" "193,1" "50,8" "114,0"
> [2,] "0,2" "0,56"   "0,13" "75,0" 
>  
> Thank you for any help
> Sarah
>    [[alternative HTML version deleted]]
> 
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