From: elmar w. <el...@ne...> - 2015-07-04 10:29:08
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from an end user point of view, matplotlibs violinplot should just do the same as seaborns violinplot. ##################################################################### import numpy as np import matplotlib.pyplot as plt import seaborn as sns N = 100 y1 = np.random.randn(N) + 3.0 y2 = np.random.randn(N) * 5.0 + 50 y3 = np.ones(N) * 100 # causing plt.violinplot problem y4 = np.arange(0) # causing plt.violinplot problem #plt.violinplot([y1, y2, y3, y4]) sns.violinplot(data=[y1, y2, y3, y4]) On 03.07.2015 17:52, Thomas Caswell wrote: > The KDE computation code is a copy of the KDE code from scipy > (https://github.com/scipy/scipy/blob/master/scipy/stats/kde.py), I > suggest raising this issue on their mailing list/github. > > I strongly suspect that violin plot should be doing data sanitation on > the way in or catching exceptions like this, but I am not familiar > enough with the math to be sure what it should do instead. > > Tom > > On Fri, Jul 3, 2015 at 11:41 AM elmar werling > <el...@ne... > <mailto:el...@ne...>> wrote: > > > Hi all, > > violinplot is crashing with singular matrix data. See example. > > Is this behaviour for a singular matrix intended or just a bug? > > Cheers > Elmar > > > > ##################################################### > import numpy as np > import matplotlib.pyplot as plt > > # data mimicing the > # original cumsum data (may sum up to 100) > N = 100 > y1 = np.random.randn(N) + 3.0 > y2 = np.random.randn(N) * 5.0 + 50 > y3 = np.ones(N) * 100 # data set causing violinplot problem > > plt.violinplot([y1, y2, y3]) > > plt.boxplot([y1, y2, y3]) # ok > plt.ylim(0,110) > > ##################################################### > > OS: Debian > Anaconda 2.3.0 (64-bit) > Python 2.7.10 > numpy 2.3.0 > matplotlib 1.4.3 > > > ------------------------------------------------------------------------------ > Don't Limit Your Business. Reach for the Cloud. > GigeNET's Cloud Solutions provide you with the tools and support that > you need to offload your IT needs and focus on growing your business. > Configured For All Businesses. Start Your Cloud Today. > https://www.gigenetcloud.com/ > _______________________________________________ > Matplotlib-devel mailing list > Mat...@li... > <mailto:Mat...@li...> > https://lists.sourceforge.net/lists/listinfo/matplotlib-devel > > > > ------------------------------------------------------------------------------ > Don't Limit Your Business. Reach for the Cloud. > GigeNET's Cloud Solutions provide you with the tools and support that > you need to offload your IT needs and focus on growing your business. > Configured For All Businesses. Start Your Cloud Today. > https://www.gigenetcloud.com/ > > > > _______________________________________________ > Matplotlib-devel mailing list > Mat...@li... > https://lists.sourceforge.net/lists/listinfo/matplotlib-devel > |