6CYANA: peaks unique - CYANA command

Parameters: selection=<string>             (default: <blank>)
            mode=average|maximal           (default: average)

From each group of identically assigned peaks only one peak is
kept. Peaks are considered as identically assigned if they are assigned
to the same proton pair. For instance, in a 2D NOESY spectrum a cross
peak and its transposed peak are "identically assigned." Peak volumes
may be averaged or their maximum be kept. Only peaks with positive
volume are considered in the averaging procedure.
