On Fri, Mar 9, 2012 at 1:14 PM, Wolfgang Draxinger <
wdraxinger.maill...@draxit.de> wrote:
> On Fri, 9 Mar 2012 11:19:15 -0600
> Benjamin Root <ben.r...@ou.edu> wrote:
>
> > Can I have the data you used to produce these errorbars so I can test
> > this bug?
>
> Here's the data
>
> # Fluence.... -sigma Signal... -sigma area
> 1127 48.32 9.114 10.31 0.1318
> 1.127e+04 482.9 35.96 16.15 0.4994
> 1.127e+05 4829 231.2 101.1 2.568
> 1.127e+06 4.829e+04 4631 1689 12.22
>
>
Ah, finally figured it out. The issue is that your y-value for that error
bar is 9.114, but you want to plot error bars that are +/-10.31. That line
gets thrown out by matplotlib because you can't plot at negative values for
log scale. There is a trick that might work. The set_yscale method has a
kwarg "nonposy" which could be set to "clip". You could also try setting
to the "symlog" scale which might let you get away with a negative value.
I hope that helps!
Ben Root
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