[TableGAN] ValueError: cannot reindex from a duplicate axis

[tejuafonja]

Environment Details

Please indicate the following details about the environment in which you found the bug:

• SDGym version: 0.5.0
• Python version: 3.7.13
• Operating System: Linux (run on colab)

Error Description

Running sdgym.run(synthesizers=[TableGAN], datasets=["adult"], show_progress=True, iterations=1) gives an ValueError for TableGAN synthesizer. The error seem to be triggered by synthetic_data.update(ht.reverse_transform(sampled_data)) on line 183 in the base.py file.

Steps to reproduce

import sdgym
from sdgym.synthesizers import TableGAN
sdgym.run(synthesizers=[TableGAN], datasets=["adult"], show_progress=True, iterations=1)

sdgym.run(synthesizers=[TableGAN], datasets=["adult"], show_progress=True, iterations=1)

You can also run this colab notebook to reproduce the error.