On Fri, Jan 6, 2012 at 9:05 PM, Kurinji Pandiyan <kurinji.pandi...@gmail.com> wrote: > Hello, > > I have one column in my dataframe that has gene names of interest. > Unfortunately, due to the fact that some probes lie between two genes or > two transcripts of a gene, it looks something like this - > > FAM81A LOC283050;LOC283050;LOC283050;ZMIZ1 PINK1;PINK1 MRPL12;MRPL12 > C1orf114 MMS19;UBTD1 > I would like to know how to get a list with all the names with no > semi-colons and removing the replicates. I would like the end result to > look like - > > FAM81A > LOC283050 > ZMIZI > PINK1 > MRPL12 > C1orf114 > MMS19 > UBTD1 > > Thanks a lot for your help! > Kurinji >
This uses strapply in gsubfn: x <- "FAM81A LOC283050;LOC283050;LOC283050;ZMIZ1 PINK1;PINK1" library(gsubfn) unique(strapply(x, "\\w+", c)[[1]]) If x is very long then there is a high speed version of strapply specialized to using c called strapplyc in the development version of gsubfn. For example, see this example of extracting 275,000 words from a novel: https://groups.google.com/group/corpling-with-r/msg/b85f7ff917cccb5d?dmode=source&output=gplain&noredirect&pli=1 -- Statistics & Software Consulting GKX Group, GKX Associates Inc. tel: 1-877-GKX-GROUP email: ggrothendieck at gmail.com ______________________________________________ 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.