[R] cor.test() -- how to get the value of a coefficient

[Joris Meys]

result <- cor.test(a,b,method="spearman")
result$estimate

Cheers
Joris

On Tue, Jun 8, 2010 at 10:40 PM, Ekaterina Pek <ekaterina.pek at gmail.com> wrote:
> Hi, all.
>
> Yet another beginner to R : )
>
> I wonder, how it's possible to get the value of a coefficient from the
> object produced by cor.test() ?
>
>> cor.test(a, b, method="spearman")
>
>        Spearman's rank correlation rho
>
> data:  a and b
> S = 21554.28, p-value = 2.496e-11
> alternative hypothesis: true rho is not equal to 0
> sample estimates:
>      rho
> 0.6807955
>
> Warning message:
> In cor.test.default(a, b, method = "spearman") :
>  Cannot compute exact p-values with ties
>
>
> So, I'd like to do something like :
>
>> result = cor.test(...)
>> rho = result.rho()
>
> -- in order to save then the value in some format into external file.
>
> Thanks in advance for helping !
>
> Regards,
> Kate.
>
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>



-- 
Joris Meys
Statistical consultant

Ghent University
Faculty of Bioscience Engineering
Department of Applied mathematics, biometrics and process control

tel : +32 9 264 59 87
Joris.Meys at Ugent.be
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