Re: [R] Using "subset" in correlation analysis

From: David Barron <david.barron_at_sbs.ox.ac.uk>
Date: Wed, 19 Mar 2008 16:15:32 +0000

You have to use the formula interface, so something like this:

cor.test(~ Alt + Cab, data=adults, alternative="greater", subset=Sex=="male")

David

On Wed, Mar 19, 2008 at 12:59 PM, James J. Roper <jjroper_at_gmail.com> wrote:
> The correlation test function says that it can do a subset where one
> specifies the subsete vector. I cannot seem to get it to work.
>
> For example, the command line is:
>
> cor.test(adults$Alt, adults$Cab, alternative="greater", method="pearson")
>
> So, let´s say my subset vector is "Sex". How would I state the command
> to get the test of that subset?
>
> Thanks in advance.
>
> Jim
> --
>
>
> James J. Roper, Ph.D.
>
> James J. Roper
> Ecologia, Evolução e Dinâmicas Populacionais
> de Vertebrados Terrestres
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-- 
David Barron
Said Business School
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Oxford OX1 1HP
01865 288906

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Received on Wed 19 Mar 2008 - 16:37:46 GMT

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