databricks.koalas.DataFrame.explode

DataFrame.explode(column) → databricks.koalas.frame.DataFrame

Transform each element of a list-like to a row, replicating index values.

Parameters

columnstr or tuple

Column to explode.

Returns

DataFrame

Exploded lists to rows of the subset columns; index will be duplicated for these rows.

See also

DataFrame.unstack

Pivot a level of the (necessarily hierarchical) index labels.

DataFrame.melt

Unpivot a DataFrame from wide format to long format.

Examples

>>> df = ks.DataFrame({'A': [[1, 2, 3], [], [3, 4]], 'B': 1})
>>> df
           A  B
0  [1, 2, 3]  1
1         []  1
2     [3, 4]  1

>>> df.explode('A')
     A  B
0  1.0  1
0  2.0  1
0  3.0  1
1  NaN  1
2  3.0  1
2  4.0  1

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