Synopsis
		sfagc < in.rsf > out.rsf repeat=1 rect#=(125,1,1,...)

Parameters
		int rect#=(125,1,1,...) smoothing radius on #-th axis   int repeat=1 repeat filtering several times

Used In
		BEI          dpmv/krchdmo krch/wgkirch vela/vscan   DATA          alaska/bash sigsbee/ptest sigsbee/pwemig   GEE          pch/steep   HANSUNG          cgg/syn   JSG          diffr/fault diffr/gom shape/beivc simistack/bei time2depth/masha2 timefreq/syn timelapse/duri   RSF          rsf/sfagc usp/data   SEP          vc2/beivc vc2/elfvc vc2/sigvc