TY for the two answers. Both work.
> -----Original Message----- > From: Phil Spector [mailto:spec...@stat.berkeley.edu] > Sent: Tuesday, May 11, 2010 11:21 AM > To: arnaud Gaboury > Cc: r-help@r-project.org > Subject: Re: [R] Regex and gsub > > df3$DESCRIPTION = > sub(' [a-z]{3}/[0-9]{2}','',df3$DESCRIPTION,ignore.case=TRUE) > > - Phil Spector > Statistical Computing Facility > Department of Statistics > UC Berkeley > spec...@stat.berkeley.edu > > > On Tue, 11 May 2010, arnaud Gaboury wrote: > > > Dear group, > > > > Here is my df : > > > > df3 <- > > structure(list(DESCRIPTION = c("COPPER May/10", "COTTON NO.2 Jul/10", > > "CRUDE OIL miNY May/10", "GOLD Jun/10", "ROBUSTA COFFEE (10) Jul/10", > > "SOYBEANS Jul/10", "SUGAR NO.11 Jul/10", "SUGAR NO.11 May/10", > > "WHEAT Jul/10", "SPCL HIGH GRADE ZINC USD", "STANDARD LEAD USD", > > "CORN May/10", "SILVER May/10", "WHEAT May/10", "COFFEE C Jul/10", > > "CORN Jul/10", "HENRY HUB NATURAL GAS May/10"), POSITION = c(0, > > 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0), prix = c(-14, > > 3.74999999999997, 5.22500000000005, 21.6999999999998, 68, -8.5, > > 2.72999999999999, -0.900000000000002, -64.25, -41, -118, 7.75, > > 45.300, 0, 4.75000000000003, -1.5, -0.0490000000000013)), .Names = > > c("DESCRIPTION", > > "POSITION", "prix"), row.names = c(NA, -17L), class = "data.frame") > > > > I want to remove all the dates in $DESCRIPTION. I was thinking using > > something like this: > >> df3$DESCRIPTION<- gsub("here is a regex > expression","",df3$DESCRIPTION). > > > > Can't write the pattern argument in regex. > > > > Any help would be appreciated. > > > > TY > > > > > > *************************** > > Arnaud Gaboury > > Mobile: +41 79 392 79 56 > > BBM: 255B488F > > > > ______________________________________________ > > 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.