[R] GAM vs. MGCV packages

Prof Brian Ripley ripley at stats.ox.ac.uk
Thu Oct 25 08:09:41 CEST 2007

The short answer is

'use mgcv unless you want compatibility with S or to use lo() terms'.

You can read about the main differences by


Note that both packages are lower-case, and case does matter.

On Wed, 24 Oct 2007, Firas Ahmed wrote:

> Hi all,
> I am a new R- user and I am going through the R-manuals, but I could not
> find an answer for my question.
> I am confused about when to use the GAM package and when to use the MGCV
> package??
> My Model is a GAM model of continuous outcome and many non-linear continuous
> predictors (using the "s" function) as well as categorical predictors.
> Thanks in advance for your help and time.
> Firas
> 	[[alternative HTML version deleted]]
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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 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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