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 <[EMAIL PROTECTED]> 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:[EMAIL PROTECTED] > Enviado el: miércoles, 26 de abril de 2006 17:47 > Para: Albert Sorribas > CC: [email protected] > 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 <[EMAIL PROTECTED]> 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]] > > > > > [[alternative HTML version deleted]]
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