Spiking activity fails to display

[blakecaldwell]

When running this Param file, "View Simulation Spiking Activity" fails to open a dialog. The error message is below:

(mne) MacBook-Pro:hnn-new blake$ python hnn.py 
Starting simulation (8 cores). . .
making dout: /Users/blake/hnn_out/data/oldControl
Traceback (most recent call last):
  File "visrast.py", line 396, in <module>
    ex = SpikeGUI()
  File "visrast.py", line 276, in __init__
    self.initUI()
  File "visrast.py", line 359, in initUI
    self.initCanvas()
  File "visrast.py", line 345, in initCanvas
    self.m = SpikeCanvas(paramf, self.index, parent = self, width=12, height=10, dpi=getmplDPI())
  File "visrast.py", line 203, in __init__
    self.plot()
  File "visrast.py", line 256, in plot
    if bDrawHist: self.lax.append(drawhist(dhist,self.figure,self.G))
  File "visrast.py", line 122, in drawhist
    ax.plot(np.arange(binsz/2,tstop+binsz/2,binsz),dhist[ty]*fctr,dclr[ty],linestyle='--')
  File "/Users/blake/miniconda3/envs/mne/lib/python3.7/site-packages/matplotlib/__init__.py", line 1867, in inner
    return func(ax, *args, **kwargs)
  File "/Users/blake/miniconda3/envs/mne/lib/python3.7/site-packages/matplotlib/axes/_axes.py", line 1528, in plot
    for line in self._get_lines(*args, **kwargs):
  File "/Users/blake/miniconda3/envs/mne/lib/python3.7/site-packages/matplotlib/axes/_base.py", line 406, in _grab_next_args
    for seg in self._plot_args(this, kwargs):
  File "/Users/blake/miniconda3/envs/mne/lib/python3.7/site-packages/matplotlib/axes/_base.py", line 383, in _plot_args
    x, y = self._xy_from_xy(x, y)
  File "/Users/blake/miniconda3/envs/mne/lib/python3.7/site-packages/matplotlib/axes/_base.py", line 242, in _xy_from_xy
    "have shapes {} and {}".format(x.shape, y.shape))
ValueError: x and y must have same first dimension, but have shapes (247,) and (246,)

[blakecaldwell]

Bug is still present after #232.

New exception:

Traceback (most recent call last):
  File "hnn.py", line 19, in <module>
    runqt5()
  File "hnn.py", line 15, in runqt5
    sys.exit(app.exec_())
  File "/Users/blake/repos/hnn/hnn/qt_main.py", line 384, in showRasterPlot
    self.show_plot('spike')
  File "/Users/blake/repos/hnn/hnn/qt_main.py", line 356, in show_plot
    'Spike Viewer')
  File "/Users/blake/repos/hnn/hnn/qt_spike.py", line 306, in __init__
    super(SpikeViewGUI, self).__init__(CanvasType, params, sim_data, title)
  File "/Users/blake/repos/hnn/hnn/DataViewGUI.py", line 37, in __init__
    self.initUI()
  File "/Users/blake/repos/hnn/hnn/DataViewGUI.py", line 146, in initUI
    self.initCanvas(True)
  File "/Users/blake/repos/hnn/hnn/DataViewGUI.py", line 119, in initCanvas
    dpi=getmplDPI())
  File "/Users/blake/repos/hnn/hnn/qt_spike.py", line 123, in __init__
    self.plot()
  File "/Users/blake/repos/hnn/hnn/qt_spike.py", line 279, in plot
    self.params['tstop']))
  File "/Users/blake/repos/hnn/hnn/qt_spike.py", line 139, in drawhist
    dhist[ty] * fctr, dclr[ty], linestyle='--')
  File "/Users/blake/miniconda3/envs/hackathon/lib/python3.7/site-packages/matplotlib/axes/_axes.py", line 1743, in plot
    lines = [*self._get_lines(*args, data=data, **kwargs)]
  File "/Users/blake/miniconda3/envs/hackathon/lib/python3.7/site-packages/matplotlib/axes/_base.py", line 273, in __call__
    yield from self._plot_args(this, kwargs)
  File "/Users/blake/miniconda3/envs/hackathon/lib/python3.7/site-packages/matplotlib/axes/_base.py", line 399, in _plot_args
    raise ValueError(f"x and y must have same first dimension, but "
ValueError: x and y must have same first dimension, but have shapes (247,) and (246,)

This file needs desperately to be recoded. Many functions could be reused from spikefn.py or even better, from hnn-core. Hi @rythorpe!

I'm following up with a quick fix to this issue.