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Message-ID: <loom.20110408T182114-208@post.gmane.org>
Date: 2011-04-08T16:26:48Z
From: Ben Bolker
Subject: Windrose Percent Interval Frequencies Are Non Linear! Help!

Brittain Briber <brittbriber <at> yahoo.com> writes:

>? Do you two or anyone
> else out there happen to know if it is possible to specify the
>  width of the intervals in windrose?? Is there
> a parameter that I can pass along that would do this??
>  Below is a reproducible script in which you can see
> the uneven interval spacing.? And thanks again for your answers.
> 
> Best
> Britt

  The "Details" of ?windrose in circular says
quite explicitly that it preserves the areas of "pedals" [sic],
so it's unlikely that this is adjustable without hacking the
code. (Hmmm, maybe I will write to the maintainers and ask
them to correct the spelling of "petals" throughout ...)

  On the other hand, there are a *lot* of alternative windrose/circular
histogram-plotting functions out there in CRAN-contrib-land.
library("sos"); findFn("wind rose") finds them in packages
plotrix, openair, oce, climatol, IDPmisc, ggplot2 ... and
that's not counting rose.diag in the CircStats package.

  I would take a quick look and see if any of those packages
work for you. 

  Ben Bolker