Synopsis
		sfmkcmp < in.rsf > spcmp.rsf n1=1000 n2=20 dt=0.001 dx=50 o1=0 o2=0 v01=1000 v02=1000 t01=0.4 t02=0.8 verb=n

Parameters
		float dt=0.001 sampling on 1-th axis(time)   float dx=50 sampling on 2-th axis(offset)   int n1=1000 number of n1   int n2=20 number of n2   float o1=0   float o2=0   float t01=0.4 t01 start point   float t02=0.8 t02 start point   float v01=1000 first event rms vel   float v02=1000 second event rms vel   bool verb=n [y/n] dimensions