Synopsis
		sftimefreq < time.rsf > timefreq.rsf mask=mask.rsf nw= dw= w0=0. rect=10 niter=100 phase=n

Parameters
		float dw= f requency step   string mask= auxiliary input file name   int niter=100 number of inversion iterations   int nw= number of frequencies   bool phase=n [y/n] output phase instead of amplitude   int rect=10 smoothing radius   float w0=0. first frequency

Used In
		RSF          tutorials/timefreq   TCCS          asa/sigsep nar/chirp nar/hou nar/mirko npm/hou npm/mirko npm/trace npm/vecta-stlc sswtapp/boonsville strat/sigmoid1 strat/spec-decom synwav/gch1 synwav/lowf synwav/pp timefreq/chev timefreq/lowf timefreq/syn