R help - Jul 2004 - Association between discrete and continuous variable

What's the reommended way, in R, to determine the strength of
association between a discrete variable and a continuous variable?

Yes, I have read the manuals, trawled the archives, &c.

On 07/12/04 18:23, Richard A. O'Keefe wrote:
>What's the reommended way, in R, to determine the strength of
>association between a discrete variable and a continuous variable?
Analysis of variance?  aov()?  R^2?

It seems to me, though, that there are many possible answers, and
this really doesn't have much to do with R because R could
implement them all.  It may matter whether the discrete variable
is ordered or not, whether it is fixed or random, what the error
distributions of the continuous variable look like, what measures
of association are traditional in your field, etc. etc.

Jon
-- 
Jonathan Baron, Professor of Psychology, University of Pennsylvania
Home page:            http://www.sas.upenn.edu/~baron
R search page:        http://finzi.psych.upenn.edu/

I'm wondering if mutual information al la Cover & Thomas (1991, Ch 2) is
not the killer association measure for all types of random variables?

Murray Jorgensen

PS  Yes, this is probably OT!

Richard A. O'Keefe wrote:
> What's the reommended way, in R, to determine the strength of
> association between a discrete variable and a continuous variable?
> 
> Yes, I have read the manuals, trawled the archives, &c.
> 
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> 
-- 
Dr Murray Jorgensen      http://www.stats.waikato.ac.nz/Staff/maj.html
Department of Statistics, University of Waikato, Hamilton, New Zealand
Email: maj at waikato.ac.nz                                Fax 7 838 4155
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