Pef - Estimate PEF in N dimensions

Pef < data.H a= [center=] [gap=] [maskin=] [maskout=] > pef.H

Estimates PEF by least squares, using helix convolution. Can ignore missing data

from history	integer array	n	reads n1 , n2 , n3 , etc.
from par	integer array	a =	filter size
	integer	niter =2*prod(a) (optional)	number of
	PEF iterations
	integer array	center =a/2+1 (optional)	zero-lag position (filter centering)
	integer array	gap =0 (optional)	filter gap
	filename	maskin, maskout (optional)	data selectors
to history	integer array	lag	comma separated list of filter lags

Modules: shape.r90 , bound.r90 , misinput.r90 , pef.r90 , compress.r90 , print.r90 , helix.r90

See also: MSPef, Fillmiss, Helicon, Decon