Imagine the following data of noises that people make, and you want to know who makes the noise "blub."
data=data.frame(rbind(c("blah, boo, blub"),c("blabber, baeh, blib"),c("quack, cheer, blub"))) names(data)=c("noises") data searchTerm="blub" #The first gives a list of all noises that people make #who also make the "blub" noise (among others) data$sound[grep(searchTerm,data$noises)] # This gives the index (row) number of the observation # of who makes the "blub" noise which(data$noises==data$noises[grep(searchTerm,data$noises)]) Is that what you want? Daniel ------------------------- cuncta stricte discussurus ------------------------- -----Ursprüngliche Nachricht----- Von: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] Im Auftrag von venkata kirankumar Gesendet: Friday, February 20, 2009 1:20 AM An: Petr PIKAL Cc: r-help@r-project.org Betreff: Re: [R] problem with comparing a part of string with whole string Hi , i just attached one file to this mail which contains one modal of my data and there i have to search for the rows which contains "SPECIMENTYP %in% "ADIPOSE TISSUE"" and the rows which contains " "PRESERVED" in ORGCHARRES for that i tried with " r<-subset(rr,SPECIMENTYP %in% "ADIPOSE TISSUE" & grep("IN DIAMETER",rr$ORGCHARRES),select=c(SPECIMENTYP,ORGCHARRES))" but i got only the rows having "ADIPOSE TISSUE" in "SPECIMENTYP" can anyone suggest any of the way for comparision of this type thanks in advance On Thu, Feb 19, 2009 at 6:26 PM, Petr PIKAL <petr.pi...@precheza.cz> wrote: > Hi > > r-help-boun...@r-project.org napsal dne 19.02.2009 13:39:42: > > > Hi all, > > > > I got one problem with comparing strings like if any string is like > > > > "*RIGHT, EPICARDIUM: FOCUS, GRAY-WHITE, SINGLE, APPROX 0.6 CM IN > DIAMETER*." > > > > and i have to compare "*GRAY-WHITE*" with the above string > > > > or otherwise i have to compare " *TUMOR BENIGN*" this > string > > with > > > > "*MEDULLRY TUMOR BENIGN,TYP PHEOCHROMOCYTOMA*" > > > > i tried with split and compare but its not working > > Work for regular expressions? > > vec="*RIGHT, EPICARDIUM: FOCUS, GRAY-WHITE, SINGLE, APPROX 0.6 CM IN > DIAMETER*." > test="GRAY-WHITE" > regexpr(test, vec) > [1] 28 > attr(,"match.length") > [1] 10 > > Regards > Petr > > > > > > can any one suggest how can i compare these type of Strings > > > > thanks in advance > > > > [[alternative HTML version deleted]] > > > > ______________________________________________ > > 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<http://www.r-project.org/p > osting-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.