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pandas.DataFrame.eval("x/y") fails when x & y are unumpy.uarray's #151

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rajarshi opened this issue Mar 20, 2022 · 0 comments

rajarshi commented Mar 20, 2022

When executing the following code, Pandas reports that TypeError: unsupported operand type(s) for /: 'object' and 'object'

    from uncertainties import unumpy
    df = pd.DataFrame(unumpy.uarray([[1, 2], [5, 6]],
                                    [[0.1, 0.2], [0.5, 0.1]]),
                      columns=['x', 'y'])
    print(df.eval("x / y", inplace=False))

However, if the formula is x+y or x*y or even x**y it works fine.

Not sure if this an issue for uncertainties or an issue in Pandas, but I'm surprised that this only happens for division

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