On 01/11/2012 06:05 AM, David Perlman wrote:
> When I try to turn on the grid for just one axis, seemingly in perfect
> accordance with the documentation at
> http://matplotlib.sourceforge.net/api/axes_api.html#matplotlib.axes.Axes.grid
>
> it seems like there is a problem. I am able to make a graph, but trying to
> turn on the grid for just one axis causes an error.
>
> My commands are pasted below.
>
> Am I doing this wrong? I am doing the best I can to follow the documentation
> exactly.
>
> Thanks for any help!
David,
The problem is that the axis kwarg was added to grid only 9 months ago,
and evidently you are running an older version of mpl. If you can
upgrade to 1.1.0, grid() will work as advertised.
This is a common problem: we post only the latest documentation, instead
of having a posted documentation version for each release version.
To work around this, use ipython to display the docstring (or even the
source code) for the particular function or method you want to use.
Eric
>
>
> import matplotlib
> matplotlib.use('MacOSX')
> import matplotlib.pyplot as plt
> fig=plt.figure()
> ax=fig.add_subplot(111)
> ax.plot([1,2,3])
> ax.set_xlabel('Hi there')
> ax.grid(True, axis='x')
>
>
> bombayduck:~$ python
> Python 2.6.5 (r265:79359, Mar 24 2010, 01:32:55)
> [GCC 4.0.1 (Apple Inc. build 5493)] on darwin
> Type "help", "copyright", "credits" or "license" for more information.
>>>> import matplotlib
>>>> matplotlib.use('MacOSX')
>>>> import matplotlib.pyplot as plt
>>>> fig=plt.figure()
>>>> ax=fig.add_subplot(111)
>>>> ax.plot([1,2,3])
> [<matplotlib.lines.Line2D object at 0x1a27e30>]
>>>> ax.set_xlabel('Hi there')
> <matplotlib.text.Text object at 0x1a58030>
>>>> ax.grid(True, axis='x')
> Traceback (most recent call last):
> File "<stdin>", line 1, in<module>
> File
> "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/axes.py",
> line 1823, in grid
> self.xaxis.grid(b, **kwargs)
> File
> "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/axis.py",
> line 965, in grid
> if len(kwargs): artist.setp(tick.gridline,**kwargs)
> File
> "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/artist.py",
> line 1169, in setp
> func = getattr(o,funcName)
> AttributeError: 'Line2D' object has no attribute 'set_axis'
>
> -dave----------------------------------------------------------------------
> A neuroscientist is at the video arcade, when someone makes him a $1000 bet
> on Pac-Man. He smiles, gets out his screwdriver and takes apart the Pac-Man
> game. Everyone says "What are you doing?" The neuroscientist says "Well,
> since we all know that Pac-Man is based on electric signals traveling
> through these circuits, obviously I can understand it better than the other
> guy by going straight to the source!"
>
>
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