---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
<ipython-input-20-06b73fa6e678> in <module>()
      1 tiempos_espera.describe()
----> 2 tiempos_espera.plot(type="bar")

~/utz/notebooks_dateros/venv/lib/python3.6/site-packages/pandas/plotting/_core.py in __call__(self, x, y, kind, ax, subplots, sharex, sharey, layout, figsize, use_index, title, grid, legend, style, logx, logy, loglog, xticks, yticks, xlim, ylim, rot, fontsize, colormap, table, yerr, xerr, secondary_y, sort_columns, **kwds)
   2615                           fontsize=fontsize, colormap=colormap, table=table,
   2616                           yerr=yerr, xerr=xerr, secondary_y=secondary_y,
-> 2617                           sort_columns=sort_columns, **kwds)
   2618     __call__.__doc__ = plot_frame.__doc__
   2619 

~/utz/notebooks_dateros/venv/lib/python3.6/site-packages/pandas/plotting/_core.py in plot_frame(data, x, y, kind, ax, subplots, sharex, sharey, layout, figsize, use_index, title, grid, legend, style, logx, logy, loglog, xticks, yticks, xlim, ylim, rot, fontsize, colormap, table, yerr, xerr, secondary_y, sort_columns, **kwds)
   1857                  yerr=yerr, xerr=xerr,
   1858                  secondary_y=secondary_y, sort_columns=sort_columns,
-> 1859                  **kwds)
   1860 
   1861 

~/utz/notebooks_dateros/venv/lib/python3.6/site-packages/pandas/plotting/_core.py in _plot(data, x, y, subplots, ax, kind, **kwds)
   1682         plot_obj = klass(data, subplots=subplots, ax=ax, kind=kind, **kwds)
   1683 
-> 1684     plot_obj.generate()
   1685     plot_obj.draw()
   1686     return plot_obj.result

~/utz/notebooks_dateros/venv/lib/python3.6/site-packages/pandas/plotting/_core.py in generate(self)
    238         self._compute_plot_data()
    239         self._setup_subplots()
--> 240         self._make_plot()
    241         self._add_table()
    242         self._make_legend()

~/utz/notebooks_dateros/venv/lib/python3.6/site-packages/pandas/plotting/_core.py in _make_plot(self)
    938                              stacking_id=stacking_id,
    939                              is_errorbar=is_errorbar,
--> 940                              **kwds)
    941             self._add_legend_handle(newlines[0], label, index=i)
    942 

~/utz/notebooks_dateros/venv/lib/python3.6/site-packages/pandas/plotting/_core.py in _plot(cls, ax, x, y, style, column_num, stacking_id, **kwds)
    953             cls._initialize_stacker(ax, stacking_id, len(y))
    954         y_values = cls._get_stacked_values(ax, stacking_id, y, kwds['label'])
--> 955         lines = MPLPlot._plot(ax, x, y_values, style=style, **kwds)
    956         cls._update_stacker(ax, stacking_id, y)
    957         return lines

~/utz/notebooks_dateros/venv/lib/python3.6/site-packages/pandas/plotting/_core.py in _plot(cls, ax, x, y, style, is_errorbar, **kwds)
    573             else:
    574                 args = (x, y)
--> 575             return ax.plot(*args, **kwds)
    576 
    577     def _get_index_name(self):

~/utz/notebooks_dateros/venv/lib/python3.6/site-packages/matplotlib/__init__.py in inner(ax, *args, **kwargs)
   1896                     warnings.warn(msg % (label_namer, func.__name__),
   1897                                   RuntimeWarning, stacklevel=2)
-> 1898             return func(ax, *args, **kwargs)
   1899         pre_doc = inner.__doc__
   1900         if pre_doc is None:

~/utz/notebooks_dateros/venv/lib/python3.6/site-packages/matplotlib/axes/_axes.py in plot(self, *args, **kwargs)
   1404         kwargs = cbook.normalize_kwargs(kwargs, _alias_map)
   1405 
-> 1406         for line in self._get_lines(*args, **kwargs):
   1407             self.add_line(line)
   1408             lines.append(line)

~/utz/notebooks_dateros/venv/lib/python3.6/site-packages/matplotlib/axes/_base.py in _grab_next_args(self, *args, **kwargs)
    405                 return
    406             if len(remaining) <= 3:
--> 407                 for seg in self._plot_args(remaining, kwargs):
    408                     yield seg
    409                 return

~/utz/notebooks_dateros/venv/lib/python3.6/site-packages/matplotlib/axes/_base.py in _plot_args(self, tup, kwargs)
    393         ncx, ncy = x.shape[1], y.shape[1]
    394         for j in xrange(max(ncx, ncy)):
--> 395             seg = func(x[:, j % ncx], y[:, j % ncy], kw, kwargs)
    396             ret.append(seg)
    397         return ret

~/utz/notebooks_dateros/venv/lib/python3.6/site-packages/matplotlib/axes/_base.py in _makeline(self, x, y, kw, kwargs)
    300         default_dict = self._getdefaults(None, kw)
    301         self._setdefaults(default_dict, kw)
--> 302         seg = mlines.Line2D(x, y, **kw)
    303         return seg
    304 

~/utz/notebooks_dateros/venv/lib/python3.6/site-packages/matplotlib/lines.py in __init__(self, xdata, ydata, linewidth, linestyle, color, marker, markersize, markeredgewidth, markeredgecolor, markerfacecolor, markerfacecoloralt, fillstyle, antialiased, dash_capstyle, solid_capstyle, dash_joinstyle, solid_joinstyle, pickradius, drawstyle, markevery, **kwargs)
    429         # update kwargs before updating data to give the caller a
    430         # chance to init axes (and hence unit support)
--> 431         self.update(kwargs)
    432         self.pickradius = pickradius
    433         self.ind_offset = 0

~/utz/notebooks_dateros/venv/lib/python3.6/site-packages/matplotlib/artist.py in update(self, props)
    883         try:
    884             ret = [_update_property(self, k, v)
--> 885                    for k, v in props.items()]
    886         finally:
    887             self.eventson = store

~/utz/notebooks_dateros/venv/lib/python3.6/site-packages/matplotlib/artist.py in <listcomp>(.0)
    883         try:
    884             ret = [_update_property(self, k, v)
--> 885                    for k, v in props.items()]
    886         finally:
    887             self.eventson = store

~/utz/notebooks_dateros/venv/lib/python3.6/site-packages/matplotlib/artist.py in _update_property(self, k, v)
    876                 func = getattr(self, 'set_' + k, None)
    877                 if func is None or not six.callable(func):
--> 878                     raise AttributeError('Unknown property %s' % k)
    879                 return func(v)
    880 

AttributeError: Unknown property type