I believe you want the duplicated() function. Michael
On Mar 2, 2012, at 10:19 AM, nathalie <n...@sanger.ac.uk> wrote: > HI, > this is my problem I want to subset this file df, using only unique df$exon > printing the line once even if df$exon appear several times: > > unique(df$exon) will show me the unique exons > If I try to print only the unique exon lines > with df[unique(df$exon),] -this doesn't print only the unique ones :( > > could you help? > thanks > Nat > > > > > exon size chr start end > 413077 ChrX_133594175_133594368_HPRT1 193 ChrX 133594175 133594368 > 413270 ChrX_133594183_133594368_HPRT1 185 ChrX 133594183 133594368 > 413455 ChrX_133594381_133594565_HPRT1 184 ChrX 133594381 133594565 > 413639 ChrX_133607389_133607495_HPRT1 106 ChrX 133607389 133607495 > 413745 ChrX_133607389_133607495_HPRT1 106 ChrX 133607389 133607495 > 413851 ChrX_133607404_133607495_HPRT1 91 ChrX 133607404 133607495 > 413942 ChrX_133609211_133609394_HPRT1 183 ChrX 133609211 133609394 > 414125 ChrX_133609211_133609394_HPRT1 183 ChrX 133609211 133609394 > 414308 ChrX_133620495_133620560_HPRT1 65 ChrX 133620495 133620560 > 414373 ChrX_133620495_133620560_HPRT1 65 ChrX 133620495 133620560 > 414438 ChrX_133620692_133620696_HPRT1 4 ChrX 133620692 133620696 > 414442 ChrX_133624218_133624235_HPRT1 17 ChrX 133624218 133624235 > > > > -- > The Wellcome Trust Sanger Institute is operated by Genome Research Limited, a > charity registered in England with number 1021457 and a company registered in > England with number 2742969, whose registered office is 215 Euston Road, > London, NW1 2BE. > > ______________________________________________ > 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.
