Hi all,
According to the `spy` docstring, it can display sparse matrices from
scipy. The following code snippet seems to break, however:
In [20]: import scipy.sparse as sp
In [21]: d = sp.lil_eye((15, 15))
In [22]: plt.spy(d)
Am I using the `spy` function correctly? I've also tried forcing
marker mode by setting marker='s' and markersize=1, but I still get
the same error message:
--> 160 gca()._sci(im)
161
162
/Users/stefan/lib/python2.6/site-packages/matplotlib/axes.pyc in _sci(self, im)
1336 elif im not in self.images and im not in self.collections:
1337 raise ValueError(
-> 1338 "Argument must be an image, collection, or
ContourSet in this Axes")
1339 self._current_image = im
1340
ValueError: Argument must be an image, collection, or ContourSet in this Axes
Kind regards and a happy festive season!
Stéfan
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