Apologies. I should have been more specific. There is a chapter on roses in
Wainer's "Visual Revelations." Florence Nightingale introduced these plots
in 1858. Other names for them are coxcomb plots, radial area plots,
Nightingale's pies, and wedges plots. Harris in "Information Graphics" calls
them sector graphs. While a pie chart has fixed radius and varies the angles,
these plots have fixed angles and vary the radius: the radius varies with the
square root of the data. Nightingale's example can be seen at the following
sites:
http://www.florence-nightingale.co.uk/small.htm
http://www.math.yorku.ca/SCS/Gallery/historical.html
It's clear from the latter that they can be drawn with SAS, but I don't have
or know how to use SAS.
While we're on the subject, I'd also be interested in your comments on them.
Clearly they are of historical interest. They lack some of the weaknesses of
pies, such as comparing angles. Since the same category is always in the same
position, it is easier to compare multiple roses than pies.
Naomi
Spencer Graves wrote:
> What's a "Nightingale Rose"? I just did a Google search and found
> the 1999 question to which you refer but nothing else. If you try a
> more generic question, someone not familiar with "Nightingale Rose
> plots" might respond with a general method that includes the object of
> your desires as a special case.
>
> hope this helps.
> spencer graves
>
> Naomi B. Robbins wrote:
>
> >I just checked the S archives and see that my question was asked in
> >1999; however, the author did not receive any answers. Therefore, I will
> >ask it again:
> >
> >Has anyone produced code to draw Nightingale roses? Does anyone know
> >other software that produces these plots?
> >
> >Thanks.
> >
> >Naomi
> >--
> >Naomi B. Robbins
> >NBR
> >11 Christine Court
> >Wayne, NJ 07470
> >
> >Phone: (973) 694-2686
> >Fax: (973) 694-6009
> >naomi@nbr-graphs.com
> >http://www.nbr-graphs.com
> >
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