On Oct 22, 2010, at 9:13 AM, Ryan May wrote: > > On Fri, Oct 22, 2010 at 8:47 AM, Christopher Fonnesbeck > <statist...@me.com> wrote: >> I notice that when the number of bins in a histogram is sparse, the spacing >> between the bins can be irregular. For example: >> >> http://cl.ly/7e0ad7039873d5446365 >> http://cl.ly/c7cb20b567722928ac3c >> >> Is there a way of normalizing this, and better, can the default behavior >> result in something more consistent (i.e. publication-quality)? > > That looks like some bizarre rounding/truncation or something like it. > Can you post an example (can just use made up data) that reproduces > this? I've not seen this before, so I sense it's due to the specific > data types you're passing in.
Here is a very simple example. The data are just a list of integers: http://dl.dropbox.com/u/233041/histexample.py and it results in an odd choice of intervals. (array([863, 775, 0, 271, 0, 67, 23, 0, 0, 1]), array([ 0. , 0.6, 1.2, 1.8, 2.4, 3. , 3.6, 4.2, 4.8, 5.4, 6. ]), <a list of 10 Patch objects>) 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. Thanks, cf ------------------------------------------------------------------------------ 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
