pandas.stats.moments.expanding_sum¶
- pandas.stats.moments.expanding_sum(arg, min_periods=1, freq=None, center=False, time_rule=None, **kwargs)¶
Expanding sum
arg : Series, DataFrame min_periods : int
Minimum number of observations in window required to have a value- freq : None or string alias / date offset object, default=None
- Frequency to conform to before computing statistic
y : type of input argument