Hi,
I have a question about %in% and subsettin data frames.
Say I need to keep ID 1,2,4,5, 10 from the data frame dat. I can do:
dat <- data.frame(ID = 1:10, var = 1:10)
someID <- c(1,2,4,5,10)
subset(dat, dat$ID %in% someID)
Is there a quick way to do the opposite, ie to do a subset that contains
all ID but someID? Something like %not in%, which would *remove* lines with
ID in someID?
I am asking because I need this in a more complex example where there are
multiple lines with the same ID (data in long format) and I need to remove
selected ID.
thanks,
MP
[[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.
