BUCHI NIRCal - Manual (Page 66)

NIRCal 5.5 Software Manual
66 NIRCal 5.5 Manual, Version A
Group Index numbers define to which group a spectrum is assigned.
There are 4 different types of selection possible:
Group name
In C-Set In CV-Group (CV Group
Index > 0)
Unused Spectra No No
CV-unused Group No Yes
CV-permanent C-Set Yes No
CV-mutable V-Set Yes Yes
Spectra with Group Index zero and not selected in the C-Set: unused spectra.
Spectra with Group Index higher than 0, but the spectra are not selected in the C-Set build the CV-
unused Group.
Advantage of this group: outliers, which belong to a spectra group, can be removed from the C-Set
without making a new spectra group. In case the spectra should be removed from this group, the
Group Index should be edited to zero.
Spectra with Group Index zero and selected in the C-Set: CV-permanent C-Set. These spectra will
never be left out from the calibration, for each calculation they will be used within the C-Set.
Advantage of this group: spectra with extreme values (min., max.) can be permanently kept in the C-
Set, which is highly recommended.
Spectra with Group Index higher than 0 and selected in the C-Set: CV-mutable V-Set. These spectra
are removed once out of the C-Set and used as V-Set during the CV cycles. These spectra are listed
in the calibration protocol with their Group number/Group Index and the spectra belonging to each
group.