Adding the line numeric: numpy to my matplotlibrc file fixed the problem. Thanks, Paul
Darren Dale wrote: > On Thursday 21 December 2006 13:43, Jeff Whitaker wrote: >> Paul Novak wrote: >>> I have a problem that arose when I tried to run the gridding irregularly >>> spaced data demo on the wiki >>> http://www.scipy.org/Cookbook/Matplotlib/Gridding_irregularly_spaced_data >>> >>> When I run the attached script, which sets one value of an array to >>> nan, masks the array where there are nan, and tries to plot it using >>> contour(), I get the following errors: >>> >>> /usr/lib/python2.4/site-packages/numpy/core/ma.py:604: UserWarning: >>> Cannot automatically convert masked array to numeric because data >>> is masked in one or more locations. >>> warnings.warn("Cannot automatically convert masked array to "\ >>> Traceback (most recent call last): >>> File "masked_nan.py", line 18, in ? >>> contour(x, y, z) >>> File "/usr/lib/python2.4/site-packages/matplotlib/pylab.py", line >>> 1754, in contour >>> ret = gca().contour(*args, **kwargs) >>> File "/usr/lib/python2.4/site-packages/matplotlib/axes.py", line >>> 4092, in contour >>> return ContourSet(self, *args, **kwargs) >>> File "/usr/lib/python2.4/site-packages/matplotlib/contour.py", line >>> 429, in __init__ >>> x, y, z = self._contour_args(*args) # also sets self.levels, >>> File "/usr/lib/python2.4/site-packages/matplotlib/contour.py", line >>> 614, in _contour_args >>> lev = self._autolev(z, 7) >>> File "/usr/lib/python2.4/site-packages/matplotlib/contour.py", line >>> 517, in _autolev >>> zmargin = (zmax - zmin) * 0.001 # so z < (zmax + zmargin) >>> TypeError: unsupported operand type(s) for -: 'str' and 'str' >>> >>> I am using >>> >>>>>> numpy.__version__ >>> '1.0' >>> >>>>>> matplotlib.__version__ >>> '0.87.7' >>> >>> Is there a way to use contour() and plot arrays whose elements may be >>> nan? >>> >>> Thanks, >>> Paul >> Paul: Your test script works for me (numpy 1.0, matplotlib 0.87.7, >> python2.5 on macos x). > > It worked fine for me too. Do you happen to have numerix : Numeric in your > matplotlibrc file? > > Darren > > ------------------------------------------------------------------------- > Take Surveys. Earn Cash. Influence the Future of IT > Join SourceForge.net's Techsay panel and you'll get the chance to share your > opinions on IT & business topics through brief surveys - and earn cash > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV > _______________________________________________ > Matplotlib-users mailing list > Matplotlib-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/matplotlib-users > ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
