Message-ID: <05A96BCA-4D14-46DA-B557-763D2AF5B747@umn.edu>
Date: 2008-12-27T21:18:43Z
From: Christopher David Desjardins
Subject: Matrix messages when loading lme4
In-Reply-To: <a46630750812271106s3aa096a1kef32e1fcd6021cd3@mail.gmail.com>
Thanks that's very helpful.
Chris
On Dec 27, 2008, at 1:06 PM, Daniel Ezra Johnson wrote:
> It means that the Matrix package includes functions with the names
> listed, which as long as Matrix is loaded, supersede the original
> versions of those functions in the base and stats packages.
>
> If you look at one of the help pages, it should explain the change to
> the function. Usually this is some additional functionality and the
> function should be usable as before, if desired.
>
> For example, ?xtabs (or ?Matrix::xtabs) gives this notice: "This is a
> fully compatible extension of the standard stats package xtabs()
> function with the added option to produce a sparse matrix result via
> sparse = TRUE."
>
> Hope this helps,
> Dan
-----------------
Christopher David Desjardins
Ph.D. Student
Quantitative Methods in Education
Department of Educational Psychology
University of Minnesota
http://blog.lib.umn.edu/desja004/educationalpsychology/