[R] R Experts

Erik Iverson eriki at ccbr.umn.edu
Fri Feb 26 19:52:09 CET 2010


Ryan Kinzer wrote:
> I am trying to understand why R is working in a particular way.  I have a
> data set with two variables; mark date (markd) and recap date (recapd).  I
> would like to know the number of days between capture dates.  But if I
> subtract recap date from mark date I often get the wrong results. 

Well, what are the classes of recapd and markd in your case?

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