code: def percentile_between(self,
                             min_percentile,
                             max_percentile,
                             mask=NotSpecified):
          
          return PercentileFilter(
              self,
              min_percentile=min_percentile,
              max_percentile=max_percentile,
              mask=mask,
          )
docs: Construct a new Filter representing entries from the output of this
          Factor that fall within the percentile range defined by min_percentile
          and max_percentile.
  
          Parameters
          ----------
          min_percentile : float [0.0, 100.0]
              Return True for assets falling above this percentile in the data.
          max_percentile : float [0.0, 100.0]
              Return True for assets falling below this percentile in the data.
          mask : zipline.pipeline.Filter, optional
              A Filter representing assets to consider when percentile
              calculating thresholds.  If mask is supplied, percentile cutoffs
              are computed each day using only assets for which ``mask`` returns
              True.  Assets for which ``mask`` produces False will produce False
              in the output of this Factor as well.
  
          Returns
          -------
          out : zipline.pipeline.filters.PercentileFilter
              A new filter that will compute the specified percentile-range mask.
  
          See Also
          --------
          zipline.pipeline.filters.filter.PercentileFilter