Sample and Variable Selection
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Sample Selection
- distslct - Selects samples on outside of data space.
- doptimal - Selects samples based on D-Optimal criteria.
- kennardstone - Select a subset of samples from a data set by the Kennard-Stone algorithm.
- reducennsamples - Selects a subset of samples by removing nearest neighbors.
- stdsslct - Selects data subsets (often for use in standardization).
Variable Selection
- fullsearch - Exhaustive Search Algorithm for small problems.
- genalg - Genetic Algorithm for Variable Selection.
- gaselctr - Genetic algorithm for variable selection with PLS.
- ipls - Interval PLS variable selection.
- rpls - Recursive PLS (and PCR) variable selection.
- calibsel - Statistical procedure for variable selection.
Variable Correlation Analysis
- corrmap - Correlation map with variable grouping.
- durbin_watson - Criterion for measure of continuity.
- super_reduce - Eliminates highly correlated variables.
Related Tools
- lamsel - Determines indices of wavelength axes in specified ranges.
- specedit - GUI for selecting spectral regions on a plot.
- fullsearch - Exhaustive Search Algorithm for small problems.
(Sub topic of Statistics and Editing Preprocessing and Standardization)