Don't fail when plotting Series/DataFrame with no row

When Series or DataFrames was empty (no cells) after removing columns without a suitable type (.select_dtypes), pandas was throwing a "no numeric data to plot" exception. This can happen: 1) either because there is no column with a suitable type; 2) or if there is no row. Raising an exception in the first case makes sense but we should probably avoid throwing an exception in the second case.

Author: Gabriel Corona

pandas/plotting/_matplotlib/core.py

@@ -418,7 +418,7 @@ def _compute_plot_data(self):
  numeric_data = data.select_dtypes(include=include_type, exclude=exclude_type)
 
  try:
- is_empty = numeric_data.empty
+ is_empty = numeric_data.columns.empty
  except AttributeError:
  is_empty = not len(numeric_data)