[Matplotlib-users] plt.bar stripping zeros

[Matthew B. <mat...@gm...>]

Hi,

I just noticed that this:

>>> x = np.arange(10)
>>> y = np.zeros(10)
>>> y[5] = 1
>>> plt.bar(x, y)

Will generate a big box for x = 5 with x 0:5 and 6: stripped, whereas this:

>>> y += 0.000001
>>> plt.bar(x, y)

Will generate a bar plot going from x = 0 to 9 with a bar at 5 as I
was expecting.

If I make a zeros vector with two discontiguous 1 values, then I also
get the full x range, with two spikes.

>>> y = np.zeros(10)
>>> y[2] = 1
>>> y[5] = 1
>>> plt.bar(x, y)

Is this expected?  It certainly surprised me...

Matthew