Program sfnmo3mcmcspiral | 3D NMO GMA MCMC inversion for spiral sorted gather with Metropolis rule (Mosegaard and Tarantola, 1995) 
[SYNOPSIS]
sfnmo3mcmcspiral < inp.rsf t0sq=t0sqf.rsf rangecoef=rangecoeff.rsf offsetx=ofx.rsf offsety=ofy.rsf > out.rsf seed=time(NULL) sigma=1.0 saveiter=20 prior=n rational=n nmodel=1000
[PARAMETERS]
int     | nmodel | =1000 |   | 	Get the number of MC models
file    | offsetx | = |   | 	auxiliary input file name
file    | offsety | = |   | 	auxiliary input file name
bool    | prior | =n |  [y/n] | 	generate prior or posterior 
file    | rangecoef | = |   | 	auxiliary input file name
bool    | rational | =n |  [y/n] | 	use rational approximation form of GMA 
int     | saveiter | =20 |   | 	save state every iter  
int     | seed | =time(NULL) |   | 	random seed 
float   | sigma | =1.0 |   | 	noise variance 
file    | t0sq | = |   | 	auxiliary input file name
[DIRECTORY]
user/zone
