Synopsis
		sfswvarimax < in.rsf > out.rsf sw=n size=0 thres=0. term=100. f1=0 f2=0 n1=nz0-fz n2=nx0-fx

Parameters
		int f1=0 sliding window radius   int f2=0 sliding window radius   int n1=nz0-fz sliding window radius   int n2=nx0-fx sliding window radius   int size=0 sliding window radius   bool sw=n [y/n] sliding window   float term=100. variance threshold (normalized)   float thres=0. variance threshold (normalized)