On Friday, March 25, 2011, Gerrit Kuhlmann <gerrit.kuhlm...@student.cityu.edu.hk> wrote: > On Fri, 2011-03-25 at 01:08 -0700, Paul Ivanov wrote: >> Gerrit Kuhlmann, on 2011-03-25 14:26, wrote: >> > Hi all, >> > >> > I get a ValueError, if I try to plot a list of numpy.nans against >> > datetime objects. I'm using Python 2.6.5 and Matplotlib 1.0.1 on Ubuntu >> > Linux 10.04. Code and traceback are below. >> > >> > Best regards, >> > Gerrit >> > >> > >> > >> > Code >> > """" >> > import matplotlib.pyplot as plt >> > import numpy as np >> > from datetime import datetime as DateTime >> > >> > t = [DateTime(2011,1,day) for day in xrange(1,20)] >> > x = [np.nan for i in xrange(1,20)] >> > >> > plt.plot(t,x) >> > plt.show() >> >> Hi Gerrit, >> >> Thanks for the report, though I'm not sure what you expect to >> happen here? >> >> Changing at least one of the elements of x to be something other >> than nan does not cause the error. >> >> There is an inconsistency, though, in that plt.plot(x,x) when x >> is full of nans does not cause any errors. >> >> best, > > Hi Paul, > > thanks for your answer. I would expect similar behaviour as for > "plot([0,1,2], [nan,nan,nan])", which creates an empty plot. A passed > through exceptions from the datetime module seems a bit odd. > > Regards, > Gerrit >
Agreed, I just came across this yesterday while working on my general exam project. I have no clue why the behavior would be different because we are using datetime objects. Ben Root > > ------------------------------------------------------------------------------ > Enable your software for Intel(R) Active Management Technology to meet the > growing manageability and security demands of your customers. Businesses > are taking advantage of Intel(R) vPro (TM) technology - will your software > be a part of the solution? Download the Intel(R) Manageability Checker > today! http://p.sf.net/sfu/intel-dev2devmar > _______________________________________________ > Matplotlib-devel mailing list > Matplotlib-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/matplotlib-devel > ------------------------------------------------------------------------------ Enable your software for Intel(R) Active Management Technology to meet the growing manageability and security demands of your customers. Businesses are taking advantage of Intel(R) vPro (TM) technology - will your software be a part of the solution? Download the Intel(R) Manageability Checker today! http://p.sf.net/sfu/intel-dev2devmar _______________________________________________ Matplotlib-devel mailing list Matplotlib-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-devel
