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Pandas DataFrame: unstack() function

DataFrame - unstack() function

Pivot a level of the (necessarily hierarchical) index labels, returning a DataFrame having a new level of column labels whose inner-most level consists of the pivoted index labels.

If the index is not a MultiIndex, the output will be a Series (the analogue of stack when the columns are not a MultiIndex).

Syntax:

DataFrame.unstack(self, level=-1, fill_value=None)

Parameters:

Name Description Type/Default Value Required / Optional
level            Level(s) of index to unstack, can pass level name int, string, or list of these(last level)
Default Value: 1		 Required
fill_value  missing values replace NaN with this value if the unstack produces Required

Returns: Series or DataFrame

Example:


Download the Pandas DataFrame Notebooks from here.

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