Hello, Try
?subset subset(dtfr, Col1 == "xxx") ?"[" dtfr[Col1 == "xxy", ] Hope this helps, Rui Barradas Em 24-05-2012 11:00, Manish Gupta <mandecent.gu...@gmail.com> escreveu:
Date: Thu, 24 May 2012 01:09:58 -0700 (PDT) From: Manish Gupta<mandecent.gu...@gmail.com> To:r-help@r-project.org Subject: [R] How to retrieve value form dataframe by Key? Message-ID:<1337846998835-4631173.p...@n4.nabble.com> Content-Type: text/plain; charset=us-ascii Hi, I have one datagrame Col1 Col2 Col3 Col3 xxx er This is third record of 1st line. This is 4th record of first line. xxy er This is third record of 1st line. This is 4th record of second line xyx er This is third record of 1st line. This is 4th record of third line I want to get records corresponding to key (here Col1). How can i implement it? e.g. if i key in xxx i should get xxx er This is third record of 1st line. This is 4th record of first line. if i key in xxy i should get xxy er This is third record of 1st line. This is 4th record of second line Regards -- View this message in context:http://r.789695.n4.nabble.com/How-to-retrieve-value-form-dataframe-by-Key-tp4631173.html Sent from the R help mailing list archive at Nabble.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.
