[R] sequence of equal-length numbers (for filenames)

[Don MacQueen]

One can also use
   formatC()
with the flag option.

-Don

At 10:47 AM -0200 1/25/10, Henrique Dallazuanna wrote:
>Try sprintf:
>
>sprintf("%03d", Sequence)
>sprintf("file%03d.dat", Sequence)
>
>
>
>
>On Mon, Jan 25, 2010 at 10:39 AM, Îroutík <zroutik at gmail.com> wrote:
>>  Dear R-users,
>>
>>  I'd like to create filenames in a mask "file000.dat" numbered from 1 to e.g.
>>  123. The last problem I'm dealing with is creating the sequence of numbers
>>  with equal length, i.e. 001, 002,.... 023, 024,.... 122, 123.
>>
>>  The closest I got is by a repetition:
>>
>>  Sequence <- c(1:123)
>>  for(i in c(1:length(Sequence))) {
>>  print(
>>     paste(rep("0",
>>  max(nchar(as.character(Sequence)))-nchar(as.character(Sequence[i]))),
>>     as.character(Sequence[i]),
>>     sep=""))
>>  }
>>
>>  where pasting "0"-replication the missing-times I 'm possibly creating the
>>  desired output. It's just that rep()'s output is not a vector and not
>>  subsequent atoms. and gives "02" and "02" instead of "002".
>>
>>  Any idea hot to correct the function above or suggestions on
>>  file000.dat-mask filename, please?
>>
>>  Thank you for your time.
>>  M
>>
>>         [[alternative HTML version deleted]]
>>
>>  ______________________________________________
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>>  https://*stat.ethz.ch/mailman/listinfo/r-help
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>>http://*www.*R-project.org/posting-guide.html
>>  and provide commented, minimal, self-contained, reproducible code.
>>
>
>
>
>--
>Henrique Dallazuanna
>Curitiba-Paraná-Brasil
>25° 25' 40" S 49° 16' 22" O
>
>______________________________________________
>R-help at r-project.org mailing list
>https://*stat.ethz.ch/mailman/listinfo/r-help
>PLEASE do read the posting guide http://*www.*R-project.org/posting-guide.html
>and provide commented, minimal, self-contained, reproducible code.


-- 
--------------------------------------
Don MacQueen
Environmental Protection Department
Lawrence Livermore National Laboratory
Livermore, CA, USA
925-423-1062