thanks for your effort.
to be more precise:

ID , OS, time and many more are the columns.
each entry is a row.

when I do:
x <- unique(dataset$ID)

It just gives me a list of all IDs (levels).

I want to get a dataframe where just one entry (row) for each ID is
included...

like:
userA , Win, 12:22
userA, OSX, 23:22
userB, Win, 04:44

should only give me row 1 and row 3...


-- 
View this message in context: 
http://r.789695.n4.nabble.com/Delete-rows-with-duplicate-field-tp2123939p2123974.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.

Reply via email to