BUCHI NIRCal User Manual
Page 159

Chemometrics
NIRCal 5.5 Manual, Version A
159
Row
Name
Description
47
Spectra y-Unit
Measuring principle
50
Wavelengths Project
Set
Measured wavelength range
51
Wavelengths
Calibration Set
Selected wavelength range (selected datapoints / all data points)
55
Number of Data
Pretreatments
Number of applied data pretreatment
56
Data Pretreatment
Sequence (short)
Short name of the applied data pretreatment
57
Data Pretreatment
Sequence (detailed)
Full name of the applied data pretreatment
60
Method
Selected calculation method / algorithm
61
Max Iterations
Calculation steps before default stop (max. 3000)
62
Mean Centering
Mean centering after pretreatment is activated: yes / no
63
Number of Primary
PCs
Number of selected primary principal components
64
Secondary/Calibration
PCs
Numbers of selected secondary principal components
66
Blow Up Parameter
Title
67
Residual Blow Up
Factor for residual limit calculation (default: 2)
68
Score Blow Up
Factor for score limit calculation (default: 1.05)
70
Max C-Set Spectra
Residual
Highest value of the C-Set residuals
71
Max Allowed Residual
for Calibration
Residual limit of the calibration for the application (max.* 2)
Result of the calculation
Row
Name
Description
Q-Value protocol
74
Q-Value V5
Q-Value of the calibration according version 5. The higher
the Q-Value the best the calibration.
75
Validation Method
Selected Validation method: Validation Set or Cross
Validation
77
C-Set Residual too big*
Number of C-Set spectra with too high residual = rejection of
known (theoretical: 0)
79
Num Properties
Number of properties in the calibration (should be always 1
for the application)
80
Rel. Consistency*
The C- and V-Set should have similar low standard error of
prediction (BIAS corrected):
Abs(SEC-SEP)/(Abs(SEP)+1). Should be close to 0
81
Weighted BIAS*
The absolute V-Set BIAS should be as close to zero as
possible:
Abs(Vset-BIAS)/Abs(Range)