[R] aggregate example : where is the state.region variable?

[John Kane]

--- MARK LEEDS <markleeds at verizon.net> wrote:

> these people/experts provide all these packages and
> documentation as a FAVOR 
> and for the fact that they enjoy spreading
> knowledge/statistical computing 
> abilities etc.  It's not their job so I think
> criticism of the docs and the 
> fact that they use a variable from another place is
> kind of harsh.
>                                 
>  Mark
> 

I am very appeciative of the time, expertise and great
helpfulness that I have seen in the R community.  

If there is no criticism of R then how do we find out
about problems that may exist?

> ----- Original Message ----- 
> From: "John Kane" <jrkrideau at yahoo.ca>
> To: "Gabor Grothendieck" <ggrothendieck at gmail.com>
> Cc: "R R-help" <r-help at stat.math.ethz.ch>
> Sent: Monday, August 21, 2006 6:59 PM
> Subject: Re: [R] aggregate example : where is the
> state.region variable?
> 
> 
> >
> > --- Gabor Grothendieck <ggrothendieck at gmail.com>
> > wrote:
> >
> >> Its not part of state.x77.  Its a completely
> >> separate variable.
> >> Try ls("package:datasets") and notice its in the
> >> list
> >> or try ?state.region and note that its a variable
> in
> >> datasets.
> >
> > Thanks. I was wondering if it was going something
> like
> > that.
> >
> > However, it is a bloody stupid example, at least
> to a
> > newbie.  A call to another data.set in what is
> > supposed to be a simple example is very confusing.
> >
> > When someone is apparently illustrating a function
> > with a simple one line command I don't expect them
> to
> > call another data set, apparently create a new
> > variable (Region), and use that new variable as
> the
> > grouping variable without a word of explanation of
> > what the example is doing.
> >
> > If I sound a bit annoyed it is because I am. It
> might
> > be nice to have an example illlustate the
> funtion,not
> > do a couple of other undocumented things as well.
> >>
> >>
> >> On 8/21/06, John Kane <jrkrideau at yahoo.ca> wrote:
> >> > I was looking ?aggregate and ran the first
> example
> >> >
> >> >  aggregate(state.x77, list(Region =
> state.region),
> >> > mean)
> >> >
> >> > The variables in state.x77 appear to be :
> >> > > state.x77
> >> > Population Income Illiteracy Life Exp Murder HS
> >> Grad
> >> > Frost   Area
> >> >
> >> > Where is the "state.region" variable coming
> from?
> >> >
> >> > ______________________________________________
> >> > R-help at stat.math.ethz.ch mailing list
> >> > https://stat.ethz.ch/mailman/listinfo/r-help
> >> > PLEASE do read the posting guide
> >> http://www.R-project.org/posting-guide.html
> >> > and provide commented, minimal, self-contained,
> >> reproducible code.
> >> >
> >>
> >
> > ______________________________________________
> > R-help at stat.math.ethz.ch mailing list
> > https://stat.ethz.ch/mailman/listinfo/r-help
> > PLEASE do read the posting guide 
> > http://www.R-project.org/posting-guide.html
> > and provide commented, minimal, self-contained,
> reproducible code.
> > 
> 
> 
>