Re: circular histograms

[Emmanuel Pacaud <emmanuel pacaud univ-poitiers fr>]

Le jeudi 18 octobre 2007 à 11:48 +0100, Carlos "Guâno" Grohmann a
écrit :
> I was wondering that it would be really nice to be able to make
> circular histograms in Gnumeric (aka rose plots or diagrams)
>
> At least in geology, we usually make those plots in two ways: from a
> dataset of (azimuth,length) of lines (geological structures), we
> create the diagrams with the petals (histogram bin) weighted eitehr by
> azimuth frequency or by line length. See the attachment for an
> example. That is a "post-processed" version, where I joined the two
> kinds in one figure. Normally we get the whole circle rose or the
> upper half.

With the next stable version, you'll probably be able to do that.

I've tried to obtain something similar to your example, and it looks
like that:

http://emmanuel.pacaud.free.fr/screenshots/gnumeric/Circular-histogram.png
http://emmanuel.pacaud.free.fr/screenshots/gnumeric/Circular-histogram.gnumeric

Emmanuel.