On Sun, 14 Nov 1999, Stephen R. Laniel wrote:
> Potentially Stupid Question Department:
>
> I just tried to load a few packages in a row. First I loaded MASS, then
> tseries, then nls. A typical error message from the last two looked like
> this:
>
> Attaching Package "package:nls":
>
>
> The following object(s) are masked from package:MASS :
>
> profile
>
> Is this a big deal? Does it mean that I lose any functionality from the
> latter two packages?
No, no. The two definitions are identical.
The problem here is that the version of nls you are using is a few days'
old, and MASS is several months' old. There is a potential problem here
in that different package writers may have different definitions. These
things usually arise when two or more people try to add missing S(-PLUS)
functionality, and they usually add it in the same way.
Remember that R is rapidly changing beta software, so it is impossible
to keep up with this kind of thing. In the next release profile
will move to the base, and nls will become a standard package.
--
Brian D. Ripley, ripley at stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272860 (secr)
Oxford OX1 3TG, UK Fax: +44 1865 272595
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