question: private static void updateFilterSDASet ( double mib , List < SteepDownArea > sdaset , double ixi ) { Iterator < SteepDownArea > iter = sdaset . iterator ( ) ; while ( iter . hasNext ( ) ) { SteepDownArea sda = iter . next ( ) ; if ( sda . getMaximum ( ) * ixi <= mib ) { iter . remove ( ) ; } else { if ( mib > sda . getMib ( ) ) { sda . setMib ( mib ) ; } } } }
target:  Update the mib values of SteepDownAreas, and remove obsolete areas.