I'm not a huge fan of this sort of solution because it doesn't make sense for non-vector-shaped (i.e., matrix or data.frame) data. It only works here because the matrix produced is a special 1xN case.
E.g., # Set up some data (and yes, I realize I'm using the trick I'm speaking out against, but c'est la vie) testData <- matrix(rnorm(20), 5) testData[c(3,6,7)] <- NA testData[!is.na(testData)] # No longer a matrix so any information stored in the shape is lost # I'd prefer something like testData[complete.cases(testData), ] or perhaps these sorts of helper functions: completeRows <- function(x){ x[rowSums(is.na(x)) == 0L, ] } completeCols <- function(x){ x[, colSums(is.na(x)) == 0L] } both of which I believe will work for matrices & data.frames. With a little work, one could make them work for regular vectors as well to have a general solution. In general, however, you'll need to figure out what the correct treatment of NA's for your problem is: some functions like lm(), sum() etc. can deal with NAs so you don't need to pre-change your input. (Protip: with lm(), I find people almost always prefer na.exclude to the default na.omit) Michael On Wed, Jan 4, 2012 at 6:01 AM, iliketurtles <isaacm...@gmail.com> wrote: > data<-matrix(rnorm(10)) > data[c(1,4,6)]<-NA > print(data) > data<-matrix(data[!is.na(data)]) > print(data) > > ----- > ---- > > Isaac > Research Assistant > Quantitative Finance Faculty, UTS > -- > View this message in context: > http://r.789695.n4.nabble.com/problem-in-R-tp4260254p4260976.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. ______________________________________________ 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.