[R] Delete rows with duplicate field...
vonhoffen at t-online.de
Mon May 3 15:04:52 CEST 2010
as a r noob i am having another problem:
i have a big dataframe where each row corresponds to one entry and each
column is a field...
for instance, i have the column ID and time and many more...
Id like to get a dataframe where all IDs are just included once (some users
with that ID might have several entries but Id like to kepp only one)..
when i use unique I only get a list of the levels (or different IDs)
could someone help me out and tell me how to get the dataframe with only one
entry for each ID?
View this message in context: http://r.789695.n4.nabble.com/Delete-rows-with-duplicate-field-tp2123939p2123939.html
Sent from the R help mailing list archive at Nabble.com.
More information about the R-help