Synopsis
		sfthreshold2 < in.rsf > out.rsf thr=thr.rsf verb=n pclip=99.

Parameters
		float pclip=99.   string thr= auxiliary input file name   bool verb=n [y/n] verbosity flag

Used In
		DATA          freeusp/land teapotdome/canoren   JLU          vdseislet/usp   M8R          data/freeusp   RSF          school/data school2017/seismic school2020/seismic