 Hi Albert,

Maybe you can summarize what you find during your teaching and put them on
one website. Everyone gives a piece of firewood, then we can build up a
strong fire.

Thanks
 Xiaohua



On 4/26/06, Albert Sorribas <albert.sorribas@cmb.udl.es> wrote:
>
> Thanks for the indications. All these suggestion will help a lot. The
> TINN-R application is impressive.
>
> However, I think something more PROBLEM directed is needed. I agree that
> Google and the ?RSiteSearch helps a lot, but yet the explanations (like
> this discussion) are not clear enough in many cases. Any way, this is my
> impression as a technical user. The R stuff is really good, but it is
> difficult to find what you need in many instances. Then, people tend to
> define its own functions (I'm doing this too), and a lack of
> standardization makes it difficult to keep everything into control.
>
>
>
> Albert Sorribas
> Professor of Statistics and Operational Research
> Departament de Ciències Mèdiques Bàsiques
> Universitat de Lleida
> Montserrat Roig 2
> 25008-Lleida (Espanya)
> web.udl.es/Biomath/Group
>
>
> -----Mensaje original-----
> De: Gabor Grothendieck [mailto:ggrothendieck@gmail.com]
> Enviado el: miércoles, 26 de abril de 2006 17:47
> Para: Albert Sorribas
> CC: r-help@stat.math.ethz.ch
> Asunto: Re: [R] Were to find appropriate functions for a given task in R
>
> There is a reference sheet here:
>   http://www.rpad.org/Rpad/R-refcard.pdf
> a function finder here:
>   http://biostat.mc.vanderbilt.edu/s/finder/find.html
> and task views here:
>   http://cran.r-project.org/src/contrib/Views/
>
> Also use of RSiteSearch and help.search from within R
> can be helpful.
>
> On 4/26/06, Albert Sorribas <albert.sorribas@cmb.udl.es> wrote:
> > This is a generic request concerning were to look for finding
> > appropriate information on a precise procedure in R.
> > I'm using R for teaching introductory statistics and my students are
> > learning how to deal with it. However, I find it difficult to locate
> > some of the procedures. For instance, for basic crosstabulation, it is
> > obvious that basic functions as table, ftable, and prop.table can be
> > used. But there is a CrossTable function that is very useful. This is
> > hidden in gmodels and gregmisc, as far as I've been able to explore
> the
> > packages. However, there is no way (unless I sit down to r-help for
> > hours) to be sure if there is some other place in which a very useful
> > function is hidden for table manipulation (for instance controlling
> for
> > other variables). This is only an example. But there are many more.
> Were
> > to look for CI for proportions? I can find it but it is not easy.
> >
> > I understand R is more appropriate for difficult statistical
> procedures
> > (glm and similar), BUT students need to start somewhere….
> >
> > My specific claim is about the need for a sort of guide in which the
> > different procedures could be classified (and some redundancies could
> be
> > deleted…..by the way). Is there something similar around? Any project
> > working on this? Any clue for?
> >
> > If not, I would suggest starting some kind of easy reference based on
> > the problem to solve. This could indicate were to look for. Last day I
> > find in package vcd that a function exist for testing the
> > goodness-of-fit of a sample to binomial and other distributions….but
> > this was VERY difficult to locate.
> >
> > Any way, as usual, any indication will be very useful (spaecially for
> my
> > students!!!)
> >
> >
> >
> > Albert Sorribas
> > Professor of Statistics and Operational Research
> > Departament de Ciències Mèdiques Bàsiques
> > Universitat de Lleida
> > Montserrat Roig 2
> > 25008-Lleida (Espanya)
> > web.udl.es/Biomath/Group
> >
> >
> >
> >        [[alternative HTML version deleted]]
> >
> >
>

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