}
public static void removeShortAndNorm(File outSub, File outNorm)throws Exception {
LandscapeBuilder lb= new BedGraphReader(outSub).getLandscapeBuilder();
LandscapeTransformer lt= new LandscapeTransformer(lb);
lt.selectLength(300, Integer.MAX_VALUE);
double sum= lb.totalArea();
double fac= sum/Math.pow(10, 8);
lt.divideBy( fac );
new BedGraphExporter(lb).writeToFile(outNorm);
}