BUCHI NIRCal User Manual
Page 125
Chemometrics
NIRCal 5.5 Manual, Version A
125
View Scores Graphic
Enlarge the Scores / Scores window in the Overview (3th column, 1st window).
There is a clear separation of the 4 different properties
spectra according to the PC 1 and 2.
There is no separation with the scores of PC 4.
PC 1, 2 and 3 are secondary PCs, the PC 4 is not
chosen for a secondary PC.
Scores against Spectra:
Enlarge the Scores window in the Cluster Method Overview (1st column, 2nd window). Good
reproducible scores belong to PCs 1, 2 and 3, the PC 4 scores are not repeatable => PC 4 can not be
used as secondary / calibration PC.