What could cause a plot fail in my code?

[Denis McMahon]

On Mon, 21 Dec 2015 09:15:38 -0800, Robert wrote:

> Hi,
> 
> I find a useful code snippet on link:
> 
> http://stackoverflow.com/questions/25126444/logistic-regression-in-
pymc/34400966#34400966
> 
> but it has error on plot function. The error message is as following:

>    6192                         ymin = np.amin(m[m != 0])
>    6193                         # filter out the 0 height bins
> -> 6194                 ymin = max(ymin*0.9, minimum) if not input_empty
> else minimum
>    6195                 ymin = min(ymin0, ymin)
>    6196                 self.dataLim.intervaly = (ymin, ymax)
> 
> UnboundLocalError: local variable 'ymin' referenced before assignment
> /////////////
> 
> I have no clue at all on debug it. Could you help me?
> Thanks,

It looks as if ymin may be defined in a conditional block, and you've 
managed to reach line 6194 without going through that block.

-- 
Denis McMahon, denismfmcmahon at gmail.com