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pythonpandasdataframeassert

How to assert an entire dataframe contains only numeric dtypes?

How can I most easily assert an entire dataframe contains only numeric dtypes?

Solution

  • If you don't want to use undocumented private methods, that might change, you can try this:

    len(df.columns) == len(df.select_dtypes([np.number]).columns)

    or 

    all(np.issubdtype(dtype, np.number) for dtype in df.dtypes)