pandas.DataFrame.transform

Call func on self producing a DataFrame with transformed values and that has the same axis length as self.

New in version 0.20.0.

param func

function, str, list or dict

Function to use for transforming the data. If a function, must either work when passed a DataFrame or when passed to DataFrame.apply.

Accepted combinations are:

• function

• string function name

• list of functions and/or function names, e.g. [np.exp. 'sqrt']

• dict of axis labels -> functions, function names or list of such.

param axis

{0 or ‘index’, 1 or ‘columns’}, default 0

If 0 or ‘index’: apply function to each column. If 1 or ‘columns’: apply function to each row. *args Positional arguments to pass to func. **kwargs Keyword arguments to pass to func.

return

DataFrame A DataFrame that must have the same length as self.

raises

ValueError : If the returned DataFrame has a different length than self.

Warning

This feature is currently unsupported by Intel Scalable Dataframe Compiler