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ECH_MULMRG
Function
Merge multiple spectra.
Summary
This utility option is provided to assist in co-adding spectra from
many frames. This option assumes that the first frame in the
reduction has been scrunched with the required wavelength scale.
It then reads a list of additional reduction structure file names
from an ascii file called NAMES.LIS. The extracted spectra from
each of these reduction files is then scrunched to the same scale
and co-added into the scrunched spectra in the current reduction
file.
The type of weighting during addition is controlled using the
parameter TUNE_MRGWGHT.
Martin Clayton
mjc@star.ucl.ac.uk
Mon Dec 9 17:09:35 1996