[R] Rearranging a data frame for multiple observations
nvanzuydam at gmail.com
Sat Feb 20 13:26:08 CET 2010
I think I'm struggling with a fairly simple problem but can't seem to solve
it. I have multiple observations for one unique identifier. Ultimately I
want to end up with one line per identifier with multiple observations in
rows. I'm really stuck any help would be really appreciated.
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