> Hello there, I have a strange plotting problem. In the
> example below I expect three equal plots of f, g and h: a
> simple inclined line, but g and h produce a sawtooth
> plot. What do I do wrong? Any help would be greatly
Not sure what your problem is -- I can run your script and get three
identical lines as expected.
My guess if you are mixing numpy with an incorrect matplotlib numerix
setting. If you are creating your arrays with numpy, you need to set
"numerix :numpy" in your matplotlibrc file
You can find your numerix setting by running your script with
> python myscript.py --verbose-helpful
John, thanks for your suggestion. I would never have thought of looking for the cause of the problem in that direction. However, it isn't solved yet. The verbose mode yielded the line "numerix Numeric 23.7", which is apparently wrong. Actually I am trying to use SciPy, which I've heard is based on NumPy, so I believe this numerix thing should be connected with NumPy. I copied the file http://matplotlib.sf.net/matplotlibrc to ~/.matplotlib/matplotlibrc (such a file didn't exist) and now I get a new kind of error (see below). Do you (or anyone) have an idea what this is about? Thanks in advance!
> python datasetPrepare.py --verbose-helpful
matplotlib data path /usr/lib/python2.4/site-packages/matplotlib/mpl-data
loaded rc file /staf/axel/.matplotlib/matplotlibrc
matplotlib version 0.87.3
interactive is False
platform is linux2
Traceback (most recent call last):
File "datasetPrepare.py", line 1, in ?
import glob, os, Image, pylab, scipy, scipy.signal, copy
File "/usr/lib/python2.4/site-packages/pylab.py", line 1, in ?
from matplotlib.pylab import *
File "/usr/lib/python2.4/site-packages/matplotlib/pylab.py", line 196, in ?
File "/usr/lib/python2.4/site-packages/matplotlib/cm.py", line 5, in ?
File "/usr/lib/python2.4/site-packages/matplotlib/colors.py", line 33, in ?
from numerix import array, arange, take, put, Float, Int, where, \
File "/usr/lib/python2.4/site-packages/matplotlib/numerix/__init__.py", line 68, in ?
from _sp_imports import nx, infinity
File "/usr/lib/python2.4/site-packages/matplotlib/numerix/_sp_imports.py", line 1, in ?
from numpy import Int8, UInt8, \
ImportError: cannot import name Int8
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