[R] merge function in R?

[Charles C. Berry]

On Fri, 13 Aug 2010, fishkbob wrote:

>
> So I have a bunch of c(start,end) points and want to consolidate them into as
> few c(start,end) as possible.
>
> For example:
> sample   start    end
> A              5       10
> B              7       18
> C              1        4
> D              16      20
>
> I'd want the function to return the two distinct sets (1,4) and (5,20)
>
> Is there an R function that already does this?

Yes.

See the reduce() function in the IRanges package on BioConductor

See pages 11-12 of

http://www.bioconductor.org/packages/2.6/bioc/vignettes/IRanges/inst/doc/IRangesOverview.pdf


HTH,

Chuck


> or should I write my own? (how would I go about that?)
> -- 
> View this message in context: http://r.789695.n4.nabble.com/merge-function-in-R-tp2324684p2324684.html
> Sent from the R help mailing list archive at Nabble.com.
>
> ______________________________________________
> 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.
>

Charles C. Berry                            (858) 534-2098
                                             Dept of Family/Preventive Medicine
E mailto:cberry at tajo.ucsd.edu	            UC San Diego
http://famprevmed.ucsd.edu/faculty/cberry/  La Jolla, San Diego 92093-0901