BUCHI NIRCal User Manual
Page 250

NIRCal 5.5 Software Manual
250
NIRCal 5.5 Manual, Version A
3. keep x% of the spectra: an iterative similar search is used to find as much spectra to thin out
the amount of spectra.
When you click Advanced, the following dialog opens:
The following fields, areas and buttons are available:
Search type: defines the search logic.
Search: defines the search criteria and method.
Distance Search: The Mahalanobis Distance -MD- Limit depends on the data and the calibration
settings. Each search trial shows the Min and Max Mahalanobis Distance to get an idea about the limit
to choose.
Iterative Search: Often it is easier to define the number of spectra that should be found instead of an
M-Distance Limit.
Select found (Smart, All, Keep): Selects the found spectra in NIRCal (red selection).
Selection (Clear, Invert): Helpful tool to manipulate the red selection.
Clear: Clears the selection.