[R] Creating a Polar Plot with expanding points as radius increases

[Patrick Jemison]

Hi Jim,

That sounds pretty great!  I am happy to have contributed a stimulus
for action to be taken in further developing the tools.  I'll keep an
eye out for your update.

Thanks,
Patrick

On Tue, Jun 28, 2011 at 6:29 AM, Jim Lemon <jim at bitwrit.com.au> wrote:
> On 06/28/2011 08:35 AM, Patrick Jemison wrote:
>>
>> I'd like to create a polar plot similar to those created by the polarFreq
>> function in the openair package.  However, this package seems to be
>> specific
>> to wind speed and direction, and requires a "ws" (wind speed) and a "wd"
>> (wind direction) column.  My data is unrelated to wind speed, but I'd like
>> to be able to get a plot that does what polarFreq's plots do; I'd like to
>> have points that expand as their distance from the center increases.
>>
>> http://www.oga-lab.net/RGM2/func.php?rd_id=openair:polarFreq
>>
>> Without this property, my plot looks more like spokes on a wheel, or
>> similar
>> to the polar.plot function in the plotrix package:
>> http://www.oga-lab.net/RGM2/func.php?rd_id=plotrix:polar.plot
>>
>> Is there a package or function available that allows the creation of a
>> plot
>> as described above for a generic set of polar data?  I spent a few hours
>> today trying to find something I could use, but no luck yet.
>>
>> I'm using data of the form: x = r, y = theta, and z = a value to plot at
>> the
>> corresponding r,theta (as a comparison, for the polarFreq plot, z would be
>> the frequency that is indicated by various colors in the plot).
>>
> Hi Patrick,
> polar.plot (or other plots in the radial.plot family) currently don't plot
> sectors or fill the (what the heck is the intersection of a sector and an
> annulus called?) to illustrate a third value (say, proportion) in addition
> to direction and intensity. However, it can be done, and I might just have a
> shot at it if I can scratch up an hour or two sometime in the next couple of
> years. Well, maybe sooner than that. Look out for "radial.pie".
>
> Jim
>
>