[R] Transformation of the circular variable into linear variable

Nasr Al-Dhurafi
2015-05-05T10:59:59Z

Dear All

I am working with a circular data ( wind direction ) and i have problem
in transforming  the circular variable into linear variable. I have found
an equation that can be used to convert the circular variable into linear
variable which is included in this paper *" ARMA based approaches for
forecasting the tuple of wind speed and direction". *The equation is called
as the inverse of a link function and i have attached  the summery of it.T
herefore,Please, if you have an idea of how to conduct it in R programming
or  if you have another method for transformation, let me know it. Your
cooperation is highly appreciated.

My Best Regards &  All The Best

Nasr

On Mon, Mar 30, 2015 at 8:22 PM, Nasr Al-Dhurafi <ldhrf at
siswa.ukm.edu.my>
wrote:

> I am working with a circular data ( wind direction ) and i have problem
> in transforming  the circular variable into linear variable. I have found
> an equation that can be used to convert the circular variable into linear
> variable which is included in this paper *" ARMA based approaches for
> forecasting the tuple of wind speed and direction". *The equation is
> called as the inverse of a link function and i have attached  the summery
> of it.Therefore,Please, if you have an idea of how to conduct it in R
> programming or  if you have another method for transformation, let me
> know it. Your cooperation is highly appreciated.
>
> My Best Regards &  All The Best
> Nasr
>

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