Re: [Matplotlib-users] Eye patterns (Heat plot?)

> From: Russ Dill [mailto:rus...@gm...] 
> Sent: Saturday, January 21, 2012 16:31
> 
> I'm using matplotlib from pylab to generate eye patterns for signal
> simulations.

...

> Is there any way within matplotlib to do that right now?

One way combines Numpy's histogram2d and matplotlib's imshow, as in the
example in the histogram2d docs [1].  The example's x array should become all
of the time samples in your traces, strung together in one dimension; the y
array, the corresponding voltage samples.

If you have certain structure, such as a regular and consistent grid of times,
you might instead construct a series of vertical, 1-d histograms (paying
attention to normalization); column-stack them into the final 2-d histogram;
and again plot with imshow.

[1]
http://docs.scipy.org/doc/numpy-1.6.0/reference/generated/numpy.histogram2d.ht
ml