how to downweight data sets with data sets how to downweight halc how to reduce a data set to downweight how to transform a data set average absolute change in hanac what kind of data sets are based on relative changes how to downweight in a data set what is high abundance what is low abundance, high absolute change what is the value of the data set in haalc what is the formula for the HAAC how to use a high abundance data set what numbers are high abundance, low abundance and high absolute change how to convert a data group to downweight how do i get a data set to calculate relative changes average data set transform convert from absolute change to high abundance how to reduce df value when to use halc in data HAHAC - definition