How to identify the rows in my dataframe with a negative value in any column?
On Nov 24, 2009, at 3:04 PM, Henrique Dallazuanna wrote:
Try this: DF[rowSums(DF < 0) == 0,]
ITYM: > DF <- data.frame(a=1:10, b=c(1:3,-4, 5:10), c=c(-1, 2:10)) > > DF[rowSums(DF < 0) > 0,] a b c 1 1 1 -1 4 4 -4 4 -- David
On Tue, Nov 24, 2009 at 5:58 PM, Mark Na <mtb954 at gmail.com> wrote:
Dear R-helpers, I have a dataframe that should not contain any negative values, but it does. I wish to print the rows from my dataframe that contain a negative value in any column. I've tried this:
dataframe[dataframe<0,]
but it just returns a row of NAs. I would very much appreciate any help with this you could provide. Thanks, Mark
David Winsemius, MD Heritage Laboratories West Hartford, CT