I would use source

> x<-  "2,5-7,10,12-15"
> source(textConnection(paste("c(", gsub("\\-", ":", x), ")")))$value
[1]  2  5  6  7 10 12 13 14 15



On Wed, Aug 14, 2013 at 8:10 PM, Bert Gunter <gunter.berton@gene.com> wrote:

> Neither gsubfn nor eval(parse)) is required, of course:
>
> > x<-  "2,5-7,10,12-15"
> > z <-strsplit(scan(text=x,sep=",",wh="a"),split="-") ## use scan to
> vectorize the string
> > l <- lapply(z,as.numeric)
> > unlist(lapply(l,function(x){
>   last <- x[length(x)]    ## alternately could use if() on the length of x
>   seq(from=x[1],to=last)
>   }))
>
> [1]  2  5  6  7 10 12 13 14 15
>
>
> Cheers,
>  Bert
>
>
> On Wed, Aug 14, 2013 at 3:34 PM, arun <smartpink111@yahoo.com> wrote:
> > Hi,
> > May be this helps:
> > library(gsubfn)
> > as.numeric(strsplit(gsub("[c() ]","",gsubfn("([0-9]+)-([0-9]+)",
> ~as.numeric(seq(x,y)),x)),",")[[1]])
> > #[1]  2  5  6  7 10 12 13 14 15
> > A.K.
> >
> >
> >
> > ----- Original Message -----
> > From: Chris Stubben <stubben@lanl.gov>
> > To: r-help@r-project.org
> > Cc:
> > Sent: Wednesday, August 14, 2013 1:41 PM
> > Subject: [R] convert delimited strings with ranges to numeric
> >
> > Is there an easy way to convert character strings with comma-separated
> > numbers and ranges to a numeric vector?
> >
> > x<-  "2,5-7,10,12-15"
> >
> > [1]  2  5  6  7 10 12 13 14 15
> >
> > Thanks,
> > Chris
> >
> >
> > --
> >
> > Chris Stubben
> >
> > Los Alamos National Lab
> > Bioscience Division
> > MS M888
> > Los Alamos, NM 87545
> >
> > ______________________________________________
> > R-help@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.
> >
> >
> > ______________________________________________
> > R-help@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.
>
>
>
> --
>
> Bert Gunter
> Genentech Nonclinical Biostatistics
>
> Internal Contact Info:
> Phone: 467-7374
> Website:
>
> http://pharmadevelopment.roche.com/index/pdb/pdb-functional-groups/pdb-biostatistics/pdb-ncb-home.htm
>
> ______________________________________________
> R-help@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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