Miscellany

public static double maxAbs (double [] signal){	double gross = Double.NEGATIVE_INFINITY;	if (signal != null) {		for (int i = 0; i < signal.length - 1; i++) {			double value = signal[i];			if (value < 0) {				value = value * -1;			}			if (value > gross) {				gross = value;			}		}	}	return gross; } // end maxAbs