BUCHI NIRCal - Manual (Page 162)

NIRCal 5.5 Software Manual
162 NIRCal 5.5 Manual, Version A
Result of the CV-steps
Row Name Description
194-
253 Validation for CV-Group
Spectra
Name, number of spectrum, original, predicted property and the
difference (Orig-Pred); an X for "extrapolation", in case the value is
outside the calibration range; residual value and an X for "redidual
too big",in case the value is outside the allowed range; spectrum
GUID
3.17.4 Prediction Protocol
Menu: Calibration / Prediction Protocol / Predict Project
Icon:
Prediction Protocol of quantitative Calibration
The quantitative calibration will give the list of selected spectra with their name, the spectra number,
the residual value. The outlier according residual means, the matrix is different, in this case the
predicted property value should be in question. The scores outliers are less important: scores are
intermediate results. The spectra with property outliers have extrapolated values: they are outside the
calibrated range. The predicted and original property values give the information about the calibration
quality.
Introduction
In NIRCal new statistical measures are included in the prediction protocol. The statistics are calculated
in compliance with the ISO 12099 standard: Animal feeding stuff, cereals and milled cereal products
Guidelines for the application of near infrared spectrometry.
The statistics are included for each property in the prediction protocol. The statistics are calculated
using the spectra which are not flagged as outliers. If there are too many outliers, the limits for the
calibration should be adjusted in the Calibration -> Outlier Detection -> Advanced menu.