On second thought, I must not understand your question because your code works fine for me.
> my.df[ which(my.df$IDX == c(17, 42)), ] IDX x 17 17 -0.5110095 42 42 -1.0686427 > my.df[my.df$IDX == c(17, 42), ] IDX x 17 17 -0.5110095 42 42 -1.0686427 Can you provide sample data? What is the output of dput(head(my.df)) On Thu, Mar 15, 2012 at 3:38 PM, G See <gsee...@gmail.com> wrote: >> my.df <- data.frame(IDX=1:42, x=rnorm(1:42)) >> my.df[my.df$IDX %in% c(17, 42), ] > IDX x > 17 17 -0.5110095 > 42 42 -1.0686427 > > Garrett > > On Thu, Mar 15, 2012 at 3:25 PM, Ed Siefker <ebs15...@gmail.com> wrote: >> I would like to subset by dataframe by matching all rows that have any value >> from a list of values. I can get it to work if I have exactly one value, >> I'm not >> sure how to do it with a list of values though. >> >> This works and gives me exactly one line: >> my.df[ which( mydf$IDX==17)), ] >> >> I would like to do something like this: >> my.df[ which( mydf$IDX==c(17, 42), ] >> >> Obviously that won't work, but I hope the meaning is clear. >> What's the right way to express this? >> >> [[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 >> 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.
