[R] [ggplot2] Wind rose orientation

[hadley wickham]

Hi Thomas,

I suspect you want  geom_bar(stat = "identity", width = 1), but it's
hard to be sure without a reproducible example.

Hadley

On Thu, Dec 3, 2009 at 8:18 PM, Thomas S. Dye <tsd at tsdye.com> wrote:
> Aloha all,
>
> I love using ggplot.  It took a while to get used to the grammar of
> graphics, but it is starting to get easy now that I am thinking in a
> more structured way.
>
> A question.  I'm making a wind rose that I'd like to be oriented with
> due north straight up.  I've discovered that the orientation is
> sensitive to how north is represented.  When north is represented as
> 0, the orientation looks to be shifted just a bit counter-clockwise,
> perhaps 10 degrees.  When north is represented as 360, the plot is
> shifted clockwise, but past the point where north is straight up.  How
> to get north straight up?
>
> I've read the book (very nice) and have skimmed through the
> documentation without finding what I need.  Any help much appreciated.
>
> Here is the code from my Org-babel session:
>
> #+begin_src R :session
>   library(ggplot2)
>   wind.data <- read.csv("pmrf_windrose_info_new.csv")
>   wind <- ggplot(wind.data, aes(x = degree, y = time, fill = wind))
>   wind.bar <- wind + geom_bar(stat = "identity")
>   wind.bar + coord_polar()
> #+end_src
>
> All the best,
> Tom
>
> Thomas S. Dye, Ph.D.
> T. S. Dye & Colleagues, Archaeologists, Inc.
> Phone: (808) 529-0866 Fax: (808) 529-0884
> http://www.tsdye.com
>
>
>
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>
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