public void subtract2()throws Exception {
Distribution dis= new BedGraphBuffer(outSub).getDistributionNonZero();
dis= dis.subsetLowerThan(dis.quantileBoundaries(10).get(7));
double med= dis.median();
double sd= dis.standartDeviation();
double thr= med+ sd* 2;
System.out.println("med: "+ med+" sd: "+ sd+" "+ thr);