[R] building data object on iteration

[Spencer Graves]

      What should one use in place of "sub" in S-Plus, where "sub" is a 
subscripting function? 

      Spencer Graves    

Uwe Ligges wrote:

> Fred J. wrote:
>
>> Hello
>> I need help, few days tying to work this out but
>> unable to find examples. "alos would appricate
>> direction on how to find exmples"
>> getting the file name "without the extension" into a
>> character vector.
>> for (i in dir("c:/data/")){
>>     filename <- c(filename,sub("([^.]+)(\\..+)","\\1",
>> i))
>> }
>> Error: Object "filename" not found
>> and I understand why the error but cann't find a way
>> to fix it.
>>
>> thanks
>>
>> ______________________________________________
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>> http://www.R-project.org/posting-guide.html
>
>
> You don't need a loop:
>
>  filename <- sub("([^.]+)(\\..+)", "\\1", dir("c:/data/"))
>
>
> Uwe Ligges
>
>
> PS: Just to get your loop working (you don't want to do it that way!):
>
>  filename <- NULL
>  for (i in dir("c:/data/")){
>      filename <- c(filename,sub("([^.]+)(\\..+)","\\1", i))
>
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://www.stat.math.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide! 
> http://www.R-project.org/posting-guide.html