pandas.api.extensions.ExtensionArray.unique#

ExtensionArray.unique()[source]#

Compute the ExtensionArray of unique values.

This method returns a new ExtensionArray containing the distinct values from the original array, preserving the order of first appearance.

Returns:
pandas.api.extensions.ExtensionArray

With unique values from the input array.

See also

Index.unique

Return unique values in the index.

Series.unique

Return unique values of Series object.

unique

Return unique values based on a hash table.

Examples

>>> arr = pd.array([1, 2, 3, 1, 2, 3])
>>> arr.unique()
<IntegerArray>
[1, 2, 3]
Length: 3, dtype: Int64