I tried the demo. When I run [in] feature_matrix, features_defs = ft.dfs(entityset=es, target_entity="customers")
I got an error message like this group() got an unexpected keyword argument 'observed'
looking forward to your help. Thanks.
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can you make sure to update to the latest version of pandas? observed is an argument they added in a later release – Max Kanter Nov 13 '18 at 20:48