pandas.Index.intersection — pandas 3.0.0.dev0+2101.g9bfbe9e339 documentation (original) (raw)

final Index.intersection(other, sort=False)[source]#

Form the intersection of two Index objects.

This returns a new Index with elements common to the index and other.

Parameters:

otherIndex or array-like

An Index or an array-like object containing elements to form the intersection with the original Index.

sortTrue, False or None, default False

Whether to sort the resulting index.

• None : sort the result, except when self and other are equal or when the values cannot be compared.
• False : do not sort the result.
• True : Sort the result (which may raise TypeError).

Returns:

Index

Returns a new Index object with elements common to both the original Index and the other Index.

See also

Index.union

Form the union of two Index objects.

Index.difference

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

Index.isin

Return a boolean array where the index values are in values.

Examples

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