BUCHI NIRCal - Manual (Page 56)

NIRCal 5.5 Software Manual
56 NIRCal 5.5 Manual, Version A
Cross Validation Grouping
Menu: Calibration \ Change Data Sets \ Edit CV Groups...
Icon:
In order to define the cross validation groups, the CV Group selector is opened.
The various possibilities for selections are summarized in the following table.
Methods
One leave out Each spectrum represents a group. Full cross validation
Alternate The spectra are grouped to different groups one after the other.
Number of Groups and Spectra per Groups can be varied, they have an
interdependency.
Sequence Consecutive spectra are grouped to the same group.
Number of Groups and Spectra per Groups can be varied, they have an
interdependency.
Random Spectra are grouped randomly. The groups are filled to the maximal amount
of Spectra per Group.
Property
Segments For the selected Property the range (min - max value) grouped into
segments. An empty segment will not build a group.
Property Equal All spectra with the identical property value are grouped. The property values
are compared over all properties.
Spectra Name All spectra with the same spectra name are grouped. The characters to
compare can be defined with Start at Character and Number of
Characters.
Spectra Name
(autom.) Number of Characters is appraised incrementally until the spectra can be
grouped to more than one group.
Start at Character is always 1.