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
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
gee/mda/hole90/, gee/mda/miss390/, gee/mda/morgan/, gee/mda/seab90/, gee/pch/signoi90/
shape.r90, bound.r90, misinput.r90, pef.r90, compress.r90, print.r90, helix.r90
MSPef, Fillmiss, the Helicon manpage, Decon