pandas.stats.moments.expanding_median¶
- pandas.stats.moments.expanding_median(arg, min_periods=1, freq=None, **kwargs)¶
O(N log(window)) implementation using skip list
Expanding median.
Parameters : arg : Series, DataFrame
min_periods : int, default None
Minimum number of observations in window required to have a value (otherwise result is NA).
freq : string or DateOffset object, optional (default None)
Frequency to conform the data to before computing the statistic. Specified as a frequency string or DateOffset object.
Returns : y : type of input argument