W3cubDocs

/pandas 0.20

pandas.core.window.Expanding.sum

Expanding.sum(*args, **kwargs) [source]

expanding sum

Parameters:

how : string, default None (DEPRECATED)

Method for down- or re-sampling

Returns:

same type as input

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Licensed under the 3-clause BSD License.
http://pandas.pydata.org/pandas-docs/version/0.20.2/generated/pandas.core.window.Expanding.sum.html