On Fri, 2010-10-22 at 11:12 -0500, Ryan May wrote: > On Fri, Oct 22, 2010 at 9:40 AM, Christopher Fonnesbeck > > > If there are only 7 possible values of the data, which are > evenly-spaced, it should probably not go in and create more than 6 > bins as the default behavior. I know I can specify bins by hand, but > when automated it would be nice to have a more sensible default. > > It just defaults to creating 10 bins (which is identical to > numpy.histogram, which is what does the work under the hood.) If you > know how many bins you want, you can just do: > > hist(x, bins=6) > > This gives (for your example) the behavior you seem to want. I don't > know of any way that would sensibly choose a number of bins > automatically, but I'd consider a patch that proves me wrong. :)
I'm moving on from IDL. From that background I used the Coyote library quite a bit, and there I found: binsize = (3.5 * numpy.std(data)) / len(data)**(0.3333) (from http://www.dfanning.com/programs/histoplot.pro known as Scott's Choice of bin size for histograms). >From the binsize and the range of the data, you then figure out an axis for the histogram). Maarten -- KNMI, De Bilt T: 030 2206 747 E: maarten.sn...@knmi.nl Room B 2.42 ------------------------------------------------------------------------------ Nokia and AT&T present the 2010 Calling All Innovators-North America contest Create new apps & games for the Nokia N8 for consumers in U.S. and Canada $10 million total in prizes - $4M cash, 500 devices, nearly $6M in marketing Develop with Nokia Qt SDK, Web Runtime, or Java and Publish to Ovi Store http://p.sf.net/sfu/nokia-dev2dev _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
