[R] rotate pie chart
Martin Maechler
maechler at stat.math.ethz.ch
Thu May 26 19:14:15 CEST 2005
>>>>> "Kati" == Katrin Schweitzer <Katrin.Schweitzer at ims.uni-stuttgart.de>
>>>>> on Wed, 25 May 2005 08:25:07 +0200 writes:
>> I think you have to get your hands dirty on this one, but it's not too
>> hard. Here's a function pie90() which is a tiny modification of pie().
>> Does that do the trick?
>>
Kati> Yes, it works perfectly fine, at least for what I
Kati> wanted... :) Thanks a lot, to Lars for asking, and
Kati> to Paul for getting your hands dirty!
Kati> Kati
Kati> PS: I know one shouldn't use pie charts at all... :)
yes, indeed, really!
Kati> but if I do so, is there a reason why they work
Kati> counter-clockwise in R? Is that convention? Sorry
Kati> if its a silly question, my intuition (which might
Kati> very likely be horrible) just expected them to start
Kati> at 12 o'clock and fill the pie clockwisely.
you see how very tired I must be at the moment; otherwise I
wouldn't spend time for this (a function that shouldn't be used),
but anyway I did....
I've worked on Paul's pie90() and on Kati's extra-wish
to produce a version of standard pie() that allows Kati and Lars
(and whoever) to produce pie()s starting at an arbitrary angle and
go clockwise instead of the usual ``mathematically positive''
direction.
Look for this (+ documentation) in a few days "in R-devel".
Martin
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