[R] sub function problem

[Massimiliano Tripoli]

Hi Petr,
thanks for your response.
You're right. I counted incorrectly the numbers of spaces at the beginning of the sub function directly called as you can see at the end.
If the string has a length more than 10 it works correctly returning the same string of input except if there are some spaces at the
beginning, that correctly it reduces to one as it expected.
But what about the error 10061 that I usually encountered ? In this case I used Tinn-R (I know it's not a Tinn-R forum sorry). Is it correlated with it.

Thanks



----- Messaggio originale -----
Da: "PIKAL Petr" <petr.pikal at precheza.cz>
A: "Massimiliano Tripoli" <mtripoli at istat.it>, r-help at r-project.org
Inviato: Lunedì, 3 marzo 2014 10:36:02
Oggetto: RE: [R] sub function problem

Hi

Everything works for me as expected. Nothing happens R starts as usual.

You can shorten your function

corregge2 <- function(stringa){
nc <- nchar(stringa)
     stringa <- sub("^ ", "", stringa)
     stringa <- sub(" +$", "", stringa)
if (nc <9) stringa <- NA
if (nc == 9) stringa <- paste("0",stringa,sep="")
if (nc == 10) stringa <- paste("00",stringa,sep="")
stringa
}

What if your string has length more than 10?

Regards
Petr

> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
> project.org] On Behalf Of Massimiliano Tripoli
> Sent: Friday, February 28, 2014 5:44 PM
> To: r-help at r-project.org
> Subject: [R] sub function problem
>
>
> Dear all,
>
> I write a R function that it should handles strings like removing
> spaces at the beginning or
> returning NA according an IF condition. Here you are the code:
>
> corregge.CF <- function(stringa){
> nc <- nchar(stringa)
>      stringa <- sub("^ ", "", stringa)
>      stringa <- sub(" +$", "", stringa)
> if (nc == 1) stringa <- NA
> if (nc == 2) stringa <- NA
> if (nc == 3) stringa <- NA
> if (nc == 4) stringa <- NA
> if (nc == 5) stringa <- NA
> if (nc == 6) stringa <- NA
> if (nc == 7) stringa <- NA
> if (nc == 8) stringa <- NA
> if (nc == 9) stringa <- paste("0",stringa,sep="")
> if (nc == 10) stringa <- paste("00",stringa,sep="")
>                 stringa
> }
>
> I had this result:
>
> > corregge.CF <- function(stringa){
> + nc <- nchar(stringa)
> +      stringa <- sub("^ ", "", stringa)
> +      stringa <- sub(" +$", "", stringa)
> + if (nc == 1) stringa <- NA
> + if (nc == 2) stringa <- NA
> + if (nc == 3) stringa <- NA
> + if (nc == 4) stringa <- NA
> + if (nc == 5) stringa <- NA
> + if (nc == 6) stringa <- NA
> + if (nc == 7) stringa <- NA
> + if (nc == 8) stringa <- NA
> + if (nc == 9) stringa <- paste("0",stringa,sep="")
> + if (nc == 10) stringa <- paste("00",stringa,sep="")
> +                 stringa
> + }
> > corregge.CF (" fsfhsfh")
> [1] NA
> > nchar(" fsfhsfh")
> [1] 8
> >  sub("^  ", "", "  fghaghf")
> [1] "fghaghf"
> >
>
> And restarting R I had this message:
>
> Error:10061
> R is not in server mode.
> Please, start R and/or run the startSocket Server function
> available in svSocket package!
>
> Anyone could help me,
> Thanks in advance
>
>
>
> --
> Massimiliano Tripoli
> Collaboratore T.E.R. scado il 31/12/2014
> ISTAT - DCCN - Direzione Centrale della Contabilità Nazionale
> U.O. Conti trimestrali delle amministrazioni pubbliche e conti della
> sanità - FIP/E
> Via Depretis, 74/B 00184 Roma
> Tel. 06.4673.3132
> E-mail: mtripoli at istat.it
>
> ______________________________________________
> 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.

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-- 
Massimiliano Tripoli 
Collaboratore T.E.R. scado il 31/12/2014 
ISTAT - DCCN - Direzione Centrale della Contabilità Nazionale 
U.O. Conti trimestrali delle amministrazioni pubbliche e conti della sanità - FIP/E 
Via Depretis, 74/B 00184 Roma 
Tel. 06.4673.3132 
E-mail: mtripoli at istat.it