I have a dataframe: Empirical.df <- data.frame(ID=c("MCUP1-2","MCUP2-5", "MCUP3-3", "MCUP4-3","MCUP5-9"), Cover=c(60,40,45,68,72))
However, I only want to use a subset of Cover.df for my analysis. The samples I want to use are: Samples.v <- c("MCUP1-2", "MCUP4-3","MCUP5-9") How do I use indexing Empirical.df by Samples.v to return a new dataframe with only the data I am interested in? Here is what I mean: Cover.df <- Empirical.df[???,] returns: Cover.df >> Cover.df ID Cover 1 MCUP1-2 60 3 MCUP4-3 68 5 MCUP5-9 72 -- View this message in context: http://r.789695.n4.nabble.com/Reconciling-2-datasets-tp2300772p2300772.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.