Assume a data file with 64 bins is read in.
CHANPHA> group ? ! Show the current grouping and the significance of each bin.
CHANPHA> group 1 2 2 59 64 3 ! Add the first two bins together and add bin 59-61 and 62-64.
CHANPHA> group ?
!
Now there are 59 bins left. A - sign in the
grouping card indicates that the channel is added to the previous
channel indicated by a + sign. See §7.1.