DefaultReducer
SumReducer
public interface Reducer<Row,Bin>
double
add(gnu.trove.map.TObjectDoubleMap<Bin> sums, Bin bin, Row row)
java.lang.Number
getNumber(Row row)
remove(gnu.trove.map.TObjectDoubleMap<Bin> sums, Bin bin, Row row)
double add(gnu.trove.map.TObjectDoubleMap<Bin> sums, Bin bin, Row row)
double remove(gnu.trove.map.TObjectDoubleMap<Bin> sums, Bin bin, Row row)
java.lang.Number getNumber(Row row)