Synopsis
		sffxrna < dat.rsf > flt.rsf mask=mask.rsf pred=pre.rsf zshift=zshift.rsf zdata=zdata.rsf ns=1 niter=100 verb=y ty=

Parameters
		string mask= auxiliary input file name   int niter=100 number of iterations   int ns=1 shifts of both sides npef=2*ns+1   string pred= auxiliary output file name   string ty= Prediction type: all=backward+forward   bool verb=y [y/n] verbosity flag   string zdata= auxiliary output file name   string zshift= auxiliary output file name