I used to have such errors when I was trying to display empty vectors.
But since you're saying that the script work on previous version of
Matplotlib...
Sorry if it hasn't helped.
Johan
2008/6/24 Darren Dale <[EMAIL PROTECTED]>:
> On Monday 23 June 2008 23:37:09 Adam Mercer wrote:
> > Hi
> >
> > Just upgraded to matplotlib-0.98.1, and a code that worked with 0.98.0
> > is now failing with the following error:
>
> Please, include a brief standalone script that demonstrates the problem
> when
> reporting problems.
>
> > Traceback (most recent call last):
> > File "./plot_workout.py", line 126, in <module>
> > time_plot = time_axes.plot_date(times_dates, times, 'bo-')
> > File "/opt/local/lib/python2.5/site-packages/matplotlib/axes.py",
> > line 3081, in plot_date
> > self.xaxis_date(tz)
> > File "/opt/local/lib/python2.5/site-packages/matplotlib/axes.py",
> > line 2015, in xaxis_date
> > locator.refresh()
> > File "/opt/local/lib/python2.5/site-packages/matplotlib/dates.py",
> > line 540, in refresh
> > dmin, dmax = self.viewlim_to_dt()
> > File "/opt/local/lib/python2.5/site-packages/matplotlib/dates.py",
> > line 436, in viewlim_to_dt
> > return num2date(vmin, self.tz), num2date(vmax, self.tz)
> > File "/opt/local/lib/python2.5/site-packages/matplotlib/dates.py",
> > line 233, in num2date
> > if not cbook.iterable(x): return _from_ordinalf(x, tz)
> > File "/opt/local/lib/python2.5/site-packages/matplotlib/dates.py",
> > line 156, in _from_ordinalf
> > dt = datetime.datetime.fromordinal(ix)
> > ValueError: ordinal must be >= 1
> >
> > Any ideas?
> >
> > Cheers
> >
> > Adam
> >
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