BUCHI NIRCal - Manual (Page 24)

NIRCal 5.5 Software Manual
24 NIRCal 5.5 Manual, Version A
1.2.9 Matrices Overview
The matrices shown here depend on the selected calibration and validation method.
Items marked with a yellow pen can be edited by pressing F2 or a double click.
1.2.10 Data
Raw data like spectra and property values are loaded from the NIRWare Database.
Spectra and property values, loaded from the database, are not modifiable in NIRCal anymore.
Pretreatments never change the original spectra.
These data are stored in a NIRCal Project. Each project has a first calibration, which has an organiser
function and this can not be deleted. Calibration specific data like selections (Spectra, Wavelength,
Pretreatments,Principal Components) are stored for each calibration separately together with the
selected chemometric methods calculated data. Approved calibrations, which are released for the
application according the Lifecycle procedure, can be used in the NIRWare Operator.
Link:
Calibration Handling according to the Lifecycle.
The main and intermediate data are stored in matrices (e.g. Original Spectra - and Original Property
matrices), which are available in table or graphic form. Intermediate data e.g. Scores and Loadings are
calculated on demand by the active calibration settings.
Matrices can be exported to MATLAB as .dat files or to EXCEL as xlm files.

MATLAB : NIR- Explorer / Matrices / “Loadings” / PopUp Menu / Export.

EXCEL: NIR- Explorer / Matrices / “Loadings” / PopUp Menu / Table. In the Table
PopUp Menu / Export Table…
Link: Matrices
NIRCal 5 can work as File- and as Database - oriented software.
With NIRCal it is possible to import data from files and to store data to files. NIRCal 5.4 downward
compatibility of spectra and properties is supported to NIRCal 5.2 as .nir, .ncf and JCAMP-DX file. In
NIRCal 5.2 the NIRCal 5.4 files can be imported with: File/ Import/ Spectra.
The loaded spectra can be also stored in the database. A spectra conversion from the older NIRCal 4
data or from other software is possible in this way. The following data types can be imported:

Projects in format ".nir";

Spectra with properties in format ".nsf, .bmp, .dat, .csv, .spc, .dx, .jdx, .jcm, .nir "

BCAP-Series in format ".S??" (Spectra file)