Sounds just like the subset function (?) x <- as.data.frame(matrix(sample(5, 100, rep=TRUE), ncol=10)) subset(x, V1 > 3 & V2 < 5)
Michael On 3 December 2010 19:05, Santosh Srinivas <santosh.srini...@gmail.com> wrote: > Hello Group, > > Is there an easy way to query a data.frame or data.table (this is > fast!) for multiple conditions? > I don't want to use a SQL kind of statement. > > I am looking for something like a subset with multiple conditions. > > Any tips of the like the binary search methodology used for data.table > would also help. > > Thanks in advance. > S > > ______________________________________________ > 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.