pandas.stats.moments.expanding_count

pandas.stats.moments.expanding_count(arg, freq=None, center=False, time_rule=None)

Expanding count of number of non-NaN observations.

arg : DataFrame or numpy ndarray-like freq : None or string alias / date offset object, default=None

Frequency to conform to before computing statistic
center : boolean, default False
Whether the label should correspond with center of window

expanding_count : type of caller