Synopsis
		sfsnrstack < in.rsf > out.rsf w=50 sft=1 ee=1.0 esp=1.0

Parameters
		float ee=1.0   float esp=1.0   float sft=1 weight shift   int w=50 sliding window size

Used In
		TCCS          pcastack/field pcastack/synth simistack/bei simistack/flat4 simistack/simple svscan/bei svscan/beicmps vscan/bei vscan/weight   UH          avostack/cmp1 avostack/cmp2 avostack/stack avostack/synh avostack/synl