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ValueError in case GeoArray.show_histogram() is called with a 2D GeoArray.

GeoArray(2darray).show_histogram()

ValueError                                Traceback (most recent call last)
<ipython-input-167-a2f7922a6194> in <module>()
      1 from spechomo_eval.fig_homogenized_images import _calc_sam
      2 sam = _calc_sam(s2_homo[:100, :100, :], s2_train[:100, :100, :], axis=2)
----> 3 GeoArray(sam).show_histogram()

~/scheffler/python/geoarray/geoarray/baseclasses.py in show_histogram(self, band, bins, normed, exclude_nodata, vmin, vmax, figsize)
   1344 
   1345         plt.figure(figsize=figsize)
-> 1346         plt.hist(list(image2plot.flat), density=normed, bins=bins, color='gray', range=[vmin, vmax])
   1347         plt.xlabel('Pixel value')
   1348         plt.ylabel('Probabilty' if normed else 'Count')

~/python_GFZ/python/lib/python3.6/site-packages/matplotlib/pyplot.py in hist(x, bins, range, density, weights, cumulative, bottom, histtype, align, orientation, rwidth, log, color, label, stacked, normed, hold, data, **kwargs)
   3130                       histtype=histtype, align=align, orientation=orientation,
   3131                       rwidth=rwidth, log=log, color=color, label=label,
-> 3132                       stacked=stacked, normed=normed, data=data, **kwargs)
   3133     finally:
   3134         ax._hold = washold

~/python_GFZ/python/lib/python3.6/site-packages/matplotlib/__init__.py in inner(ax, *args, **kwargs)
   1853                         "the Matplotlib list!)" % (label_namer, func.__name__),
   1854                         RuntimeWarning, stacklevel=2)
-> 1855             return func(ax, *args, **kwargs)
   1856 
   1857         inner.__doc__ = _add_data_doc(inner.__doc__,

~/python_GFZ/python/lib/python3.6/site-packages/matplotlib/axes/_axes.py in hist(***failed resolving arguments***)
   6528             # this will automatically overwrite bins,
   6529             # so that each histogram uses the same bins
-> 6530             m, bins = np.histogram(x[i], bins, weights=w[i], **hist_kwargs)
   6531             m = m.astype(float)  # causes problems later if it's an int
   6532             if mlast is None:

~/python_GFZ/python/lib/python3.6/site-packages/numpy/lib/function_base.py in histogram(a, bins, range, normed, weights, density)
    667     if not np.all(np.isfinite([mn, mx])):
    668         raise ValueError(
--> 669             'range parameter must be finite.')
    670     if mn == mx:
    671         mn -= 0.5

ValueError: range parameter must be finite.