pandas.Index.difference

finalIndex.difference(other, sort=None)[source]

Return a new Index with elements of index not in other.

This is the set difference of two Index objects.

Parameters:

other:Index or array-like

sort:bool or None, default None

Whether to sort the resulting index. By default, the values are attempted to be sorted, but any TypeError from incomparable elements is caught by pandas.

• None : Attempt to sort the result, but catch any TypeErrors from comparing incomparable elements.

• False : Do not sort the result.

• True : Sort the result (which may raise TypeError).

Returns:

Index

Examples

>>> idx1 = pd.Index([2, 1, 3, 4])
>>> idx2 = pd.Index([3, 4, 5, 6])
>>> idx1.difference(idx2)
Index([1, 2], dtype='int64')
>>> idx1.difference(idx2, sort=False)
Index([2, 1], dtype='int64')