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DataFrameGroupBy.diff()

DataFrameGroupBy.diff(periods=1, axis=0)

1st discrete difference of object

Parameters:

periods : int, default 1

Periods to shift for forming difference

axis : {0 or ?index?, 1 or ?columns?}, default 0

Take difference over rows (0) or columns (1).

Returns:

diffed : DataFrame

Links:

http://pandas.pydata.org/pandas-docs/version/0.19.2/generated/pandas.core.groupby.DataFrameGroupBy.diff.html

doc_Pandas

2017-01-12 04:46:58

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