I am using Matplotlib version 1.0.1 and I get errors if I try the following:
import matplotlib.pyplot as plt
import numpy as np
plt.specgram(np.zeros(50))
I have pasted the error output below, but hopefully it would reproduce
in other systems. I'm not sure if this is intended behavior and was
wondering. I came across this when I was plotting the specgram of my
sound input, but my microphone was muted!
---------------------------------------------------------------------------
AttributeError Traceback (most recent call last)
/usr/local/lib/python2.6/dist-packages/matplotlib/backends/backend_wx.pyc in
_onPaint(self, evt)
1192 drawDC = wx.PaintDC(self)
1193 if not self._isDrawn:
-> 1194 self.draw(drawDC=drawDC)
1195 else:
1196 self.gui_repaint(drawDC=drawDC)
/usr/local/lib/python2.6/dist-packages/matplotlib/backends/backend_wxagg.pyc
in draw(self, drawDC)
57 """
58 DEBUG_MSG("draw()", 1, self)
---> 59 FigureCanvasAgg.draw(self)
60
61 self.bitmap =
_convert_agg_to_wx_bitmap(self.get_renderer(), None)
/usr/local/lib/python2.6/dist-packages/matplotlib/backends/backend_agg.pyc
in draw(self)
392
393 self.renderer = self.get_renderer()
--> 394 self.figure.draw(self.renderer)
395
396 def get_renderer(self):
/usr/local/lib/python2.6/dist-packages/matplotlib/artist.pyc in
draw_wrapper(artist, renderer, *args, **kwargs)
53 def draw_wrapper(artist, renderer, *args, **kwargs):
54 before(artist, renderer)
---> 55 draw(artist, renderer, *args, **kwargs)
56 after(artist, renderer)
57
/usr/local/lib/python2.6/dist-packages/matplotlib/figure.pyc in
draw(self, renderer)
796 dsu.sort(key=itemgetter(0))
797 for zorder, func, args in dsu:
--> 798 func(*args)
799
800 renderer.close_group('figure')
/usr/local/lib/python2.6/dist-packages/matplotlib/artist.pyc in
draw_wrapper(artist, renderer, *args, **kwargs)
53 def draw_wrapper(artist, renderer, *args, **kwargs):
54 before(artist, renderer)
---> 55 draw(artist, renderer, *args, **kwargs)
56 after(artist, renderer)
57
/usr/local/lib/python2.6/dist-packages/matplotlib/axes.pyc in draw(self,
renderer, inframe)
1944
1945 for zorder, a in dsu:
-> 1946 a.draw(renderer)
1947
1948 renderer.close_group('axes')
/usr/local/lib/python2.6/dist-packages/matplotlib/artist.pyc in
draw_wrapper(artist, renderer, *args, **kwargs)
53 def draw_wrapper(artist, renderer, *args, **kwargs):
54 before(artist, renderer)
---> 55 draw(artist, renderer, *args, **kwargs)
56 after(artist, renderer)
57
/usr/local/lib/python2.6/dist-packages/matplotlib/image.pyc in
draw(self, renderer, *args, **kwargs)
352 warnings.warn("Image will not be shown
correctly with this backend.")
353
--> 354 im = self.make_image(renderer.get_image_magnification())
355 if im is None:
356 return
/usr/local/lib/python2.6/dist-packages/matplotlib/image.pyc in
make_image(self, magnification)
567 im, xmin, ymin, dxintv, dyintv, sx, sy = \
568 self._get_unsampled_image(self._A, [_x1, _x2, _y1,
_y2],
--> 569 transformed_viewLim)
570
571 fc = self.axes.patch.get_facecolor()
/usr/local/lib/python2.6/dist-packages/matplotlib/image.pyc in
_get_unsampled_image(self, A, image_extents, viewlim)
199 else:
200 if self._rgbacache is None:
--> 201 x = self.to_rgba(self._A, self._alpha)
202 self._rgbacache = x
203 else:
/usr/local/lib/python2.6/dist-packages/matplotlib/cm.pyc in
to_rgba(self, x, alpha, bytes)
191 pass
192 x = ma.asarray(x)
--> 193 x = self.norm(x)
194 x = self.cmap(x, alpha=alpha, bytes=bytes)
195 return x
/usr/local/lib/python2.6/dist-packages/matplotlib/colors.pyc in
__call__(self, value, clip)
809 if vmin > vmax:
810 raise ValueError("minvalue must be less than or
equal to maxvalue")
--> 811 elif vmin==vmax:
812 result = 0.0 * val
813 else:
/usr/lib/python2.6/dist-packages/numpy/ma/core.pyc in __eq__(self, other)
3117 mask = np.all([[f[n].all() for n in
mask.dtype.names]
3118 for f in mask], axis=axis)
-> 3119 check._mask = mask
3120 return check
3121 #
AttributeError: 'numpy.bool_' object has no attribute '_mask'
------------------------------------------------------------------------------
Protect Your Site and Customers from Malware Attacks
Learn about various malware tactics and how to avoid them. Understand
malware threats, the impact they can have on your business, and how you
can protect your company and customers by using code signing.
http://p.sf.net/sfu/oracle-sfdevnl
_______________________________________________
Matplotlib-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/matplotlib-users
