Synopsis
		sfsignoi < dat.rsf > signoi.rsf sfilt=spef.rsf nfilt=npef.rsf epsilon= niter=20 spitz=n prec=n verb=n slag= nlag=

Parameters
		float epsilon= regularization parameter   file nfilt= auxiliary input file name   int niter=20 number of iterations   string nlag=   bool prec=n [y/n] if use preconditioning with Spitz   file sfilt= auxiliary input file name   string slag=   bool spitz=n [y/n] if use Spitz method   bool verb=n [y/n] verbosity flag

Used In
		GEE          pch/signoi   JLU          txyapf/curve   RSF          tutorials/spitz   SEP          spitz/sign