[R] rpart help please

A.J. Rossini rossini at blindglobe.net
Thu Jul 4 20:46:56 CEST 2002

>>>>> "remy" == Remy X O Martin <Remy> writes:

    remy> Well, then I will reword my question as: what are good,
    remy> freely (online) available introductions to statistics in R
    remy> for the generic scientist, and where can they be found if
    remy> not via google and the like?

And why should it be freely available?  Someone has to write it;
that's hard.  I've heard of proposals to write such a book, but it
won't be free.  I'm not seeing any support for such a project
commercially, nor is there formal academic credit in general for such
(at least not compared to the effort required to make it good, not
just adequate), which might be the other

There are good (though not perfect) introductions in the contrib
section of CRAN.  There are plenty of "textbooks" on the WWW, in
various degrees of quality.  

Any scientist has to put in for research equipment.  I've never heard
of RT-PCR machines being free, nor the computers, nor most tools for
most endeavors.  Why should statistical tools (knowledge as well as
software) be treated in the same way?  

"Statistics, anyone can do that; you provide a service, you aren't
part of the scientific team, we don't need to provide you with tools,
since it's more important to pick up reagent X, or our own new Win XP
laptops, or an additional conference...".

Thankfully, it's been a long while since I've worked with such
folk..., though I get inquiries from them, thanks to the two
(incomplete, and of marginal/poor quality compared to contemporary
work) WWW-texts that I wrote nearly 6 years ago, and have made
freely available.


A.J. Rossini				Rsrch. Asst. Prof. of Biostatistics
U. of Washington Biostatistics		rossini at u.washington.edu	
FHCRC/SCHARP/HIV Vaccine Trials Net	rossini at scharp.org
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