Message-ID: <loom.20080201T202320-56@post.gmane.org>
Date: 2008-02-01T20:29:00Z
From: MAB
Subject: Zoo functions
Hi!
1) The documentation for the zoo package indicates a function lag.zoo .
I can't find it when I try to use it or do a help(lag.zoo). I can find all the
other zoo functions I tried so far (allthough diff.zoo is missing also).
Any hints?
2) What does the following message imply?
Warning message:
some methods for "zoo" objects do not work if the index entries in 'order.by'
are not unique in: zoo(rval, x.index[i])
Thanks for your help,
Michel