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diffdays
2010 Aug 24
2
How to remove rows based on frequency of factor and then difference date scores
Hello-
A basic question which has nonetheless floored me entirely. I have a
dataset which looks like this:
Type ID Date Value
A 1 16/09/2020 8
A 1 23/09/2010 9
B 3 18/8/2010 7
B 1 13/5/2010 6
There are two Types, which correspond to different individuals in
different conditions, and loads of ID labels (1:50)