R help - Nov 2012 - cosine curve fit

does anybody have a suggestion as to how to use R to fit some date to a
cosine function and then have some output statistics that will evaluate the
fit?  



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Le 26/11/12 18:19, dysonsphere a ?crit :
> does anybody have a suggestion as to how to use R to fit some date to a
> cosine function and then have some output statistics that will evaluate the
> fit?
>
>
>
You could take a look at the package phenology.
It fits several periodic functions (cosine) onto timeseries of counts.
I don't know what you want exactly and so I don't know if it can be on 
some help.
In case it does not what you look for, we could discuss as I develop 
this package.

A common alternative is to use fourrier transforms.

Sincerely

Marc

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Marc Girondot, Pr

Laboratoire Ecologie, Syst?matique et Evolution
Equipe de Conservation des Populations et des Communaut?s
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