I receive an error when trying to plot barcharts. To confirm it was
nothing to do with my code, I tried running one of the demos provided and
received the same error:
$ python barchart_demo.py
Traceback (most recent call last):
File "barchart_demo.py", line 11, in ?
p1 = bar(ind, menMeans, width, color='r', yerr=menStd)
File "/usr/lib64/python2.4/site-packages/matplotlib/pylab.py", line
1641, in bar
ret = gca().bar(*args, **kwargs)
File "/usr/lib64/python2.4/site-packages/matplotlib/axes.py", line 2485,
in bar
xerr = asarray([xerr]*nbars, Float)
File "/usr/lib64/python2.4/site-packages/numarray/numarraycore.py", line
434, in asarray
return array(seq, type=type, typecode=typecode, copy=0, dtype=dtype)
File "/usr/lib64/python2.4/site-packages/numarray/numarraycore.py", line
417, in array
return fromlist(sequence,type,shape)
File "/usr/lib64/python2.4/site-packages/numarray/numarraycore.py", line
267, in fromlist
arr.fromlist(seq)
ValueError: Invalid sequence.
Can't figure out the issue in numarray it is encountering.
I am brand spanking new to matplotlib and using python for scientific
computing (amazing product; can't believe I didn't know about it before.)
and would appreciate some help in getting started. I apologise if it's
something basic (couldn't find anything on google).
python 2.4.3
matplotlib 0.87.4
numarray-1.5.2
(Mandriva 2007 x64-64)
Thanks,
Suresh
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