Eric Firing wrote:
>>
>> I'm pretty new to this stuff, so what belongs where is sometimes
>> unclear. I'll check out the sourceforge tip. I didn't write the
>> program. I'm just trying to add some features. Changing the import
>> for matplotlib got the graphics window up.
>> import matplotlib.pyplot as plt
>>
>> When I ran it, it was followed by this traceback:
>> ------------start
>> Exception in Tkinter callback
>> Traceback (most recent call last):
>> File "C:\Python25\lib\lib-tk\Tkinter.py", line 1403, in __call__
>> return self.func(*args)
>> File
>> "C:\Sandia_Meteors\Sentinel_Development\Development_Sentuser+Utilities\sentuser\sentuser_20090103+hist.py",
>>
>> line 508, in ShowHistogram
>> plt.histogram(v, bins=linspace(0,256,nplt_bins+1), normed=1)#
>> matplotlib version (plot)
>> AttributeError: 'module' object has no attribute 'histogram'
>> ---------------end
>> 508 line is the histogram. Who's complaining? ShowHistogram? I don't
>> believe I should be using hist here instead of histogram.
>
> histogram is a numpy function, not a pyplot function. Pyplot has a
> hist which uses numpy.histogram to do the calculation, and then plots
> it. It does look like plt.hist is what was intended in your code.
>
> For tracking down such things, there is no substitute for working
> interactively with ipython. If you are not already familiar with it,
> taking a little time to get it running and learn the basics (like tab
> completion and appending ? or ?? to function names to get docstrings +
> origins, and source code, respectively) will pay big dividends.
>
> Eric
These dependencies sure are tricky. I changed it to plt:hist, and that
got me a histogram plot. I think some of my parameters need work, but
it's close to what I expected. When I closed the graph and finally the
program, the shell (IDLE) did not provide a >> prompt, nor did it
produce my print of "End of Histogram" that followed plt.hist. Closing
the shell revealed something was still running. I may have to go to the
console for execution to see what that's about.
I've heard of ipython. It looks like I should give it a try. Examples
for matplotlib abound, but not much about how MATLAB concepts like
figure shows up anywhere. Is that all in pylab docs?
--
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