[R] Complex to polar?

[Prof Brian Ripley]

Please read ?complex.

On Sun, 27 Jul 2008, rkevinburton at charter.net wrote:

> I am using fft(x) to compute the fft of a real-valued sequence. This 
> returns (as expected an array of complex numbers. Is ther an R function 
> to transform these complex numbers into two arrays for the magnitude and 
> phase? Basically polar notation?
>
> Thank you.
>
> Kevin
>
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> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.

PLEASE do.


-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595