here's an example
a call to pyplot.axis() after I call pcolor straightens it out though. thx
gokhan, and sorry to all for not picking that up in the docs myself.
and finally, `demolishor' is a great and hilarious song by a band called the
acacia strain, in case there are parties interested in music that might make
your officemates think you're satanic. i am delighted this thread generated
such an enthusiastic response in this regard.
ta ta
On Fri, Aug 28, 2009 at 3:32 PM, John Hunter <jdh2...@gmail.com> wrote:
> On Fri, Aug 28, 2009 at 1:59 PM, DEMOLISHOR! the
> Demolishor<destrooo...@gmail.com> wrote:
> > This is the result from a call to pyplot.pcolor() -- why do the axes
> > automatically expand beyond the range of the data? And how can I set them
> > back? I am not seeing an obvious keyword argument in the pcolor docs to
> do
> > this...
> >
>
> could you post a complete example that replicates the problem?
>
> JDH
>
Here you go.
#!/usr/bin/env python
import numpy
from matplotlib import pyplot
bi_mean = [1,2]
cov_mat = [[1, 2],
[2, 1]]
xy_data = numpy.random.multivariate_normal(bi_mean, cov_mat, 100000)
x_data = [pt[0] for pt in xy_data]
y_data = [pt[1] for pt in xy_data]
zfill, xbins, ybins = numpy.histogram2d(x_data, y_data, bins=[100,100],
range=((-3.2,7.2),(-3.2,7.2)))
xpts = numpy.linspace(-3.2, 7.2, 100)
ypts = numpy.linspace(-3.2, 7.2, 100)
pyplot.pcolor(ypts, xpts, zfill)
pyplot.colorbar()
pyplot.savefig('pyplot1.png')
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