Synopsis
		sfnlm2 < in.rsf > out.rsf t1=5 t2=5 f1=2 f2=2 h=0.5 boundary=n

Parameters
		bool boundary=n [y/n] if y, boundary is data, whereas zero   int f1=2 radio of similarity window   int f2=2 radio of similarity window   float h=0.5 degree of filtering   int t1=5 radio of search window   int t2=5 radio of search window