Message-ID: <042E11E7-220E-4285-A054-91665B8FB359@gmail.com>
Date: 2009-01-21T20:30:49Z
From: Gonçalo Ferraz
Subject: finding row and column indices of date in multiple columns of a data frame
Hi,
I have a data.frame SAMPLES with columns:
Site Site# Season Day1 Day2 Day3
Day1, Day2, Day3 are class "Date", the other columns are numeric or
factor.
I have a date "mydate" that may or may not be listed in my data.frame
and I need to find that out.
If "mydate" is there, I want to get the number of the data.frame row
where it occurs.
"mydate" may be in any of the three date columns and if it is there,
it appears only once.
Thank you for any advice and sorry if this is ni FAQ's - I couldn't
find it.
Gonzalo