ValueError: cannot reindex from a duplicate axis about pdpbox

[jmoberreuter]

I just realize, this might be connected to #13.

[SauceCat]

Please upgrade, the bug has already been fixed.

    # center the plot
    if center:
        pdp_y -= pdp_y[0]
        for col in feature_grids[1:]:
            ice_lines[col] -= ice_lines[feature_grids[0]]
        ice_lines[feature_grids[0]] = 0

[basaks]

There is still problem with this line. See this error stack:

File "/usr/local/lib/python3.6/site-packages/pdpbox/pdp.py", line 416, in pdp_plot
   count_ax=_count_ax, **pdp_plot_params)
 File "/usr/local/lib/python3.6/site-packages/pdpbox/pdp_plot_utils.py", line 137, in _pdp_plot
   ice_lines[col] -= ice_lines[feature_grids[0]]
 File "/usr/local/lib/python3.6/site-packages/pandas/core/ops.py", line 1390, in f
   result = method(self, other)
 File "/usr/local/lib/python3.6/site-packages/pandas/core/ops.py", line 1583, in wrapper
   result = safe_na_op(lvalues, rvalues)
 File "/usr/local/lib/python3.6/site-packages/pandas/core/ops.py", line 1529, in safe_na_op
   return na_op(lvalues, rvalues)
 File "/usr/local/lib/python3.6/site-packages/pandas/core/ops.py", line 1507, in na_op
   result = masked_arith_op(x, y, op)
 File "/usr/local/lib/python3.6/site-packages/pandas/core/ops.py", line 1009, in masked_arith_op
   com.values_from_object(yrav[mask]))
TypeError: numpy boolean subtract, the `-` operator, is deprecated, use the bitwise_xor, the `^` operator, or the logical_xor function instead.