[R] [O/T] undergrads and R

[Petr Pikal]

Hi

I do not work in teaching spheres

but with vectorss why not use

> x1<-rnorm(10)
> x2<-rnorm(20)
> x3<-rnorm(30)
> lapply(list(x1,x2,x3),mean)
[[1]]
[1] 0.1341367

[[2]]
[1] 0.2973334

[[3]]
[1] -0.002678184

>

HTH
Petr

On 25 Apr 2006 at 8:14, Ales Ziberna wrote:

Date sent:      	Tue, 25 Apr 2006 08:14:34 +0200
From:           	Ales Ziberna <aleszib at gmail.com>
To:             	"Richard M. Heiberger" <rmh at temple.edu>
Copies to:      	John Fox <jfox at mcmaster.ca>, r-help at stat.math.ethz.ch
Subject:        	Re: [R] [O/T] undergrads and R

> I will be also using R commander with undergrad students, who actually
> already have some experience with R, however they have been using it
> more as programing language than a statistical tool and I want to get
> them more familiar with this aspect of R.
> 
> First, when I had my first look at R commander, I really liked it,
> however, when I did a little more experiments, I found it quite
> frustrating at times, especially by the fact that when computing a
> certain statistics (for example mean), you can select only one
> variable at the time. Are there any plans to change this, so that a
> number of variables could be chosen? I would also prefer to have the
> variables sorted the same way as they are in the data frame and and
> not alphabetically. If this two (what I believe minor) things could be
> improved, I would find R commander much more usable.
> 
> Otherwise, I find it a grate package, especially when working with
> social sciences students.
> 
> Does anyone else have similar filings.
> 
> Best regards,
> Ales Ziberna
> 
> Richard M. Heiberger pravi:
> > This semester for the first time I have been using the combination
> > of R, R Commander (John Fox's package providing a menu-driven
> > interface to R), and RExcel (Erich Neuwirth's package for
> > interfacing R with Excel).  The audience is the introductory
> > Statistics class for Business undergradutes.  The short summary is
> > that I think the combination works well for this audience.
> > 
> > I will be talking on my experience at the useR! conference in June. 
> > I added several additional menu items to Rcmdr for our group.  I
> > sent the January ones (prior to the beginning of the semester) to
> > John Fox in January. I will send another batch of menu items, those
> > constructed during the semester, as soon as the semester is
> > complete.
> > 
> > The goal is to hide most of the programming from the students.  But
> > not all of it.  I think it is very important for any user of a menu
> > system to have at least a rudimentary idea of the programming steps
> > behind the menu. Rcmdr supports this goal since it functions by
> > generating R language statements from the menu selections and
> > displaying the generated statements. For example, I will casually
> > change the cex or ylim of a generated plot statement.  I post the
> > script window (generated and edited statements) from each class to
> > the course website.  I do not post the output window.
> > 
> > ______________________________________________
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> > PLEASE do read the posting guide!
> > http://www.R-project.org/posting-guide.html
> >
> 
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Petr Pikal
petr.pikal at precheza.cz