pandas.errors.DataError

exception pandas.errors.DataError

Exception raised when performing an operation on non-numerical data.

For example, calling ohlc on a non-numerical column or a function on a rolling window.

See also

Series.rolling

Provide rolling window calculations on Series object.

DataFrame.rolling

Provide rolling window calculations on DataFrame object.

Examples

>>> ser = pd.Series(["a", "b", "c"])
>>> ser.rolling(2).sum()
Traceback (most recent call last):
DataError: No numeric types to aggregate