coalesce_columns(): Check exactly the overwrite works when operation is None and document in the help

jceresearch / pydit

Library of data wrangling functions that an internal auditor typically needs (for my own use and learning, if you wish to use or collaborate pls get in touch, or use at your own peril).

https://pypi.org/project/pydit-jceresearch/

MIT License

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coalesce_columns(): Check exactly the overwrite works when operation is None and document in the help #33

Closed jceresearch closed 2 years ago

jceresearch commented 2 years ago

https://github.com/jceresearch/pydit/blob/f911c994fa1175acb0f09761b8e9f63ebba3f69f/pydit/functions/coalesce_columns.py#L46

jceresearch commented 2 years ago

the first non null wins, the rest are ignored, unless we choose concatenate.