stuid lastname firstname gradelevel status entrydate
28372 ACEVEDO KEYLIANIS 0 E 8/31/2015
28166 CAHILL ALLANNA 0 N 8/31/2015
28166 CAHILL ALLANNA 0 E 9/24/2015
ive got data in a csv as above. alot more lines of course with a few more duplicates. im trying to drop the duplicates, but keep the one of the two with the most recent “entrydate”, and send it to a new csv along with the otheres that arent duplicates.
having a difficult time figuring out how to go about this.