John, Attached are a slightly modified lines.py, based on
> CVS download this morning, and a demo of plotting masked
> arrays.
Hi Eric,
I'm getting an exception when I try and run the example you provided
-- I see the same thing with numarray. I'll attach the example below
too, for the sake of completeness, but it is unmodified
peds-pc311:~/python/projects/matplotlib/examples> python masked_demo.py --Numeric --verbose-helpful
matplotlib data path /usr/local/share/matplotlib
loaded rc file /home/jdhunter/.matplotlibrc
matplotlib version 0.80
verbose.level helpful
interactive is False
platform is linux2
numerix Numeric 23.6
font search path ['/usr/local/share/matplotlib']
loaded ttfcache file /home/jdhunter/.ttffont.cache
backend WXAgg version 2.5.5.1
Traceback (most recent call last):
File "masked_demo.py", line 19, in ?
lines = plot(x, y, 'r', x, ym1, 'g', x, ym2, 'b.')
File "/usr/local/lib/python2.3/site-packages/matplotlib/pylab.py", line 1930, in plot
ret = gca().plot(*args, **kwargs)
File "/usr/local/lib/python2.3/site-packages/matplotlib/axes.py", line 2409, in plot
for line in self._get_lines(*args, **kwargs):
File "/usr/local/lib/python2.3/site-packages/matplotlib/axes.py", line 281, in _grab_next_args
yield self._plot_3_args(remaining[:3], **kwargs)
File "/usr/local/lib/python2.3/site-packages/matplotlib/axes.py", line 249, in _plot_3_args
markeredgecolor=mec,
File "/usr/local/lib/python2.3/site-packages/matplotlib/lines.py", line 135, in __init__
self.set_data(xdata, ydata)
File "/usr/local/lib/python2.3/site-packages/matplotlib/lines.py", line 190, in set_data
self._y = asarray(y, Float)
File "/usr/local/lib/python2.3/site-packages/Numeric/Numeric.py", line 133, in asarray
return multiarray.array(a, typecode, copy=0, savespace=savespace)
File "/usr/local/lib/python2.3/site-packages/Numeric/MA/MA.py", line 632, in __array__
raise MAError, \
MA.MA.MAError: Cannot automatically convert masked array to Numeric because data
is masked in one or more locations.
peds-pc311:~/python/projects/matplotlib/examples>
peds-pc311:~/python/projects/matplotlib/examples> python masked_demo.py --numarray --verbose-helpful
matplotlib data path /usr/local/share/matplotlib
loaded rc file /home/jdhunter/.matplotlibrc
matplotlib version 0.80
verbose.level helpful
interactive is False
platform is linux2
numerix numarray 1.1
font search path ['/usr/local/share/matplotlib']
loaded ttfcache file /home/jdhunter/.ttffont.cache
backend WXAgg version 2.5.5.1
Traceback (most recent call last):
File "masked_demo.py", line 19, in ?
lines = plot(x, y, 'r', x, ym1, 'g', x, ym2, 'b.')
File "/usr/local/lib/python2.3/site-packages/matplotlib/pylab.py", line 1930, in plot
ret = gca().plot(*args, **kwargs)
File "/usr/local/lib/python2.3/site-packages/matplotlib/axes.py", line 2409, in plot
for line in self._get_lines(*args, **kwargs):
File "/usr/local/lib/python2.3/site-packages/matplotlib/axes.py", line 281, in _grab_next_args
yield self._plot_3_args(remaining[:3], **kwargs)
File "/usr/local/lib/python2.3/site-packages/matplotlib/axes.py", line 249, in _plot_3_args
markeredgecolor=mec,
File "/usr/local/lib/python2.3/site-packages/matplotlib/lines.py", line 135, in __init__
self.set_data(xdata, ydata)
File "/usr/local/lib/python2.3/site-packages/matplotlib/lines.py", line 190, in set_data
self._y = asarray(y, Float)
File "/usr/local/lib/python2.3/site-packages/numarray/numarraycore.py", line 360, in asarray
return array(seq, type=type, typecode=typecode, copy=0)
File "/usr/local/lib/python2.3/site-packages/numarray/numarraycore.py", line 344, in array
return sequence.__array__(type)
File "/usr/local/lib/python2.3/site-packages/numarray/ma/MA.py", line 651, in __array__
raise MAError, \
numarray.ma.MA.MAError: Cannot automatically convert masked array to Numeric because data
is masked in one or more locations.
masked_demo.py (605 Bytes)