[R] packages installation

[Mauricio Ortiz Calvao]

Hi folks

I am a complete beginner with R. I have been able to 
install it under Windows 95
on my PC. I use to use it, as a GUI, from a shortcut 
icon on my Desktop workspace.

I am very much in need of using some packages for 
density estimation from a
two-dimensional data set of simulated points. I need to 
build the corresponding
continuous or smoothed probability density function, and 
afterwards, the
confidence contours at some specified typical 
probabilities (such as 68%, 99%,...).
I have already downloaded some packages, such as ash, 
kernsmooth, locfit and sm,
which seem to be very well tailored for the job, but 
(shame!) I was unable to
install them; I found out that I really don't know where 
to ``put'' them (after
unzipping...). I wasn't able to find any help in 
the documentation. Then, I would not know how to make 
them work under R, that is,
how should I make R get aware of their existence?

I would also like to take the opportunity to ask people 
about any suggestions
on good packages for this density estimation and 
construction of histograms from
two-dim points.

Finally, I urge you to email your answers to either

    ORCA at IF.UFRJ.BR

or

    MAUORCA at IG.COM.BR.

Regards and thanks everybody for the wonderful job with 
R!!!
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