question: public double computeMaxClassValueUsingPercentFactorPerSeries ( DefaultChartData chartData , String [ ] series , double [ ] percentFactorPerSeries ) { double maxValue = 0 ; for ( String className : chartData . getClassNamesIncludingDisabled ( ) ) { double total = 0 ; for ( int i = 0 ; i < series . length ; i ++ ) { String seriesName = series [ i ] ; if ( transposedHeightsAdditive ) total += percentFactorPerSeries [ i ] * chartData . getValueAsDouble ( seriesName , className ) ; else total = Math . max ( total , percentFactorPerSeries [ i ] * chartData . getValueAsDouble ( seriesName , className ) ) ; } if ( total > maxValue ) { maxValue = total ; } } return 1.1 * maxValue ; }
target:  gets the max value for a given class in a transposed chart when using percentages