I am attempting to run a lot of tests automatically and generate a graph for
each one. However, at the moment, the previous graph remains on the figure
and the next plot is drawn over it.
I have read extensively the documentation and I have tried a whole lot of
different commands but to no avail. In the previous post it said to use
pylab.clf() which is exactly what I've been trying to use.
So far I have used pylab.cla(), pylab.clf() and pylab.close() although I
believe that this only closes an open figure window. I have no idea why it
is not working now especially since it would appear that my question had
already been answered in both the documentation and the forums.
I am using Python 2.6.4 on Ubuntu Linux.
Here is the relevant code I am using:
pylab.plot(xAxis, TrainingPoints, 'b-')
pylab.plot(xAxis, TestPoints, 'r-')
pylab.xlabel('Epochs')
pylab.ylabel('Sum Squared Error')
pylab.title('Plot of Iris Training Errors')
outfilename = str(int(LEARNING_RATE)) + ".png"
print outfilename
pylab.ylim(ymin=0)
pylab.savefig(outfilename)
pylab.cla()
pylab.clf()
I really hope one of you can spot an error otherwise I am completely stuck.
···
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w/o seeing the entire code it is difficult to diagnose. Nothing looks
wrong with your code. However, for full control I suggest you use the
API; see examples at
http://matplotlib.sourceforge.net/examples/api/index.html and take a
look at the "artist tutorial" at
http://matplotlib.sourceforge.net/users/artists.html.
In a nutshell
fig = plt.figure()
ax = fig.add_subplot(111)
for param in myparams:
fig.clf()
ax.plot(something_with(param))
ax.set_ylabel('Sum Squared Error')
ax.set_title('Plot of Iris Training Errors')
ax.set_ylim(ymin=0)
outfilename = '%d.png'%param
fig.savefig(outfilename)
···
On Tue, May 25, 2010 at 4:08 AM, Thistleryver <mhar244@...3120...> wrote:
I am attempting to run a lot of tests automatically and generate a graph for
each one. However, at the moment, the previous graph remains on the figure
and the next plot is drawn over it.
I have read extensively the documentation and I have tried a whole lot of
different commands but to no avail. In the previous post it said to use
pylab.clf() which is exactly what I've been trying to use.
So far I have used pylab.cla(), pylab.clf() and pylab.close() although I
believe that this only closes an open figure window. I have no idea why it
is not working now especially since it would appear that my question had
already been answered in both the documentation and the forums.
I am using Python 2.6.4 on Ubuntu Linux.
Here is the relevant code I am using:
pylab.plot(xAxis, TrainingPoints, 'b-')
pylab\.plot\(xAxis, TestPoints, 'r\-'\)
pylab\.xlabel\('Epochs'\)
pylab\.ylabel\('Sum Squared Error'\)
pylab\.title\('Plot of Iris Training Errors'\)
outfilename = str\(int\(LEARNING\_RATE\)\) \+ "\.png"
print outfilename
pylab\.ylim\(ymin=0\)
pylab\.savefig\(outfilename\)
pylab\.cla\(\)
pylab\.clf\(\)
w/o seeing the entire code it is difficult to diagnose. Nothing looks
wrong with your code. However, for full control I suggest you use the
API; see examples at
http://matplotlib.sourceforge.net/examples/api/index.html and take a
look at the "artist tutorial" at
http://matplotlib.sourceforge.net/users/artists.html.
Thank you. The tutorial was very helpful. For a moment I thought I might
have found the answer with the lines.remove() function but alas, it did not
make a difference yet again. 
I am starting to feel that this is a
problem with my setup rather than my code. I may have to try this on
someone else's computer.
In a nutshell
fig = plt.figure()
ax = fig.add_subplot(111)
for param in myparams:
fig.clf()
ax.plot(something_with(param))
ax.set_ylabel('Sum Squared Error')
ax.set_title('Plot of Iris Training Errors')
ax.set_ylim(ymin=0)
outfilename = '%d.png'%param
fig.savefig(outfilename)
This is almost exactly the same as something else I have tried but this is
all to no avail. I have posted all of my code at
http://code-bin.homedns.org/653 if anyone has time to look at it.
···
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