boolean function ( int arg0 ) { return periodsElements [ arg0 ] != null && periodsElements [ arg0 ] . size ( ) != 0 ; }
check if this itemset appears in a given period concode_field_sep Integer item concode_elem_sep int sumIutilP concode_elem_sep int sumIutilN concode_elem_sep List<Element>[] periodsElements concode_elem_sep int periodsSumIutilRutil[] concode_field_sep List<Element> getElementsOfPeriod concode_elem_sep double getSumIRUtilsInPeriod concode_elem_sep void addElement concode_elem_sep void construct concode_elem_sep void construct concode_elem_sep Element findElementWithTID