DataFrame.align()

other : DataFrame or Series

join : {?outer?, ?inner?, ?left?, ?right?}, default ?outer?

axis : allowed axis of the other object, default None

Align on index (0), columns (1), or both (None)

level : int or level name, default None

Broadcast across a level, matching Index values on the passed MultiIndex level

copy : boolean, default True

Always returns new objects. If copy=False and no reindexing is required then original objects are returned.

fill_value : scalar, default np.NaN

Value to use for missing values. Defaults to NaN, but can be any ?compatible? value

method : str, default None

limit : int, default None

fill_axis : {0 or ?index?, 1 or ?columns?}, default 0

Filling axis, method and limit

broadcast_axis : {0 or ?index?, 1 or ?columns?}, default None

Broadcast values along this axis, if aligning two objects of different dimensions