Hi Bruce,
correlation ratio (eta) is different from correlation coefficient (rho).
While correlation coefficient captures only a linear relationship btw
variables, correlation ratio captures both linear and non-linear
relationships. It is the defined as the ratio of the variance between
arrays to the total variance.
Thanks,
Suman
On 6/27/07, Bruce Willy <[EMAIL PROTECTED]> wrote:
>
> hello
>
> try cor(x, y = NULL, use = "all.obs",
> method = c("pearson", "kendall", "spearman"))
>
> in the R console, you can type "?cor" to get some help on a particular
> function
> and help.search("correlation") if you do know the keyword
>
> > Date: Wed, 27 Jun 2007 18:00:05 -0400
> > From: [EMAIL PROTECTED]
> > To: [email protected]
> > Subject: [R] Correlation ratio
> >
> > Hi,
> >
> > I wanted to know how to compute the correlation ratio (eta) between two
> > variables using R. Is there any function to compute the correlation
> ratio.
> > Any help will be very much appreciated.
> >
> > Thanks,
> > Suman
> >
> > [[alternative HTML version deleted]]
> >
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> http://www.R-project.org/posting-guide.html
> > and provide commented, minimal, self-contained, reproducible code.
>
>
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