Hi Stephen, See below. On Thursday 18 February 2010 11:01:25 am stephen sefick wrote: > Is there any easy way to pull out the row indexes for a logical > matching statment? > > #################example code######################################### > foo <- data.frame(name=c(rep("A", 25), rep("B", 25), rep("C", 25), > rep("A", 25)), stuff=rnorm(100), and=rnorm(100), things=rnorm(100)) > > #this is what I want but I would like the row indexes > foo[foo[,1]==A,] >
row.names(foo[foo[,1]=="A",]) ###################################################################### > > Also, is there a way to get both A or B into the logical statment ?"|" Best, Ista > > thanks so much for all of your help > > Stephen ______________________________________________ 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.