Synopsis
		sfcat > out.rsf space= axis=3 nspace=(int) (ni/(20*nin) + 1) [

sfmerge inserts additional space between merged data.

Parameters
		int axis=3 Axis being merged   int nspace=(int) (ni/(20*nin) + 1) if space=y, number of traces to insert   bool space= [y/n] Insert additional space. y is default for sfmerge, n is default for sfcat

Used In
		BEI          conj/causint dpmv/yalei dwnc/sigmoid ft1/brad ft1/ft2d ft1/autocor krch/sep73 sg/toldi vela/strat vela/stack   CWP          geo2006TimeShiftImagingCondition/zicig geo2007StereographicImagingCondition/sigsbee2 geo2007StereographicImagingCondition/gaus1 geo2007StereographicImagingCondition/flat4 geo2008InterferometricImagingCondition/sact1 geo2008InterferometricImagingCondition/circle geo2008NumericWEMVAoperators/saltWEMVA geo2008NumericWEMVAoperators/flatWEMVA jse2006RWEImagingOverturningReflections/sigsbee   DATA          amoco/fdmod marmousi/fdmod marmousi2/div marmousi2/vx pluto/mult pluto/shot pluto/fdmod segsalt/data sigsbee/nfs2B sigsbee/fs2B sigsbee/fdmod2A sigsbee/ptest sigsbee/data2A   GEE          ajt/causint ajt/conv ajt/cunha iin/miss1figs lmn/sep73 lmn/sep77 lsq/antoine lsq/invstack mda/misif noiz/burst noiz/mad pch/tvdecon prc/sep95 prc/sep94 prc/bob   GEO384W          hw1/wave hw2/eikonal hw5/hyper hw6/blake   GEO391          hw1/bay hw2/running hw6/pattern   GEOSTATS          simulate/simple   GPGN658          fdmod/exercise rtmig/exercise   JSG          atten/pdepth atten/karman1 atten/karmand atten/qcurve atten/spectra attr/vecta avo/stat avo/avo lpf/regr lpf/simon lpf/lpf lpf/plut lpf/ray medianfilter/window nmo3/mcelroy nmo3/azimuthtest pmig/nmo shape/smoo shape/beivc shape/int1 simistack/simple strfilter/hongliu time2depth/masha2 timelapse/long1 timelapse/timelapse   RSF          rsf/unif3 rsf/radial school/single school/sigsbee school/complex usp/data   SEP          angle/agmig antial/flt antial/sig bspl/bintest bspl/chirp burg/gtens burg/tension findif/heat fmeiko/tri fmsec/cvel forwd/chirp precon/mis1 precon/oned pwd/sean pwd/hector pwd/dune pwd/lomo stack/velinv stack/miginv stoltst/imps stoltst/elfst vc2/beivc