Sample and Variable Selection

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. See also Genetic Algorithms for Variable Selection.

gaselctr - Genetic algorithm for variable selection with PLS.

ipls - Interval PLS variable selection. See also Interval PLS (IPLS) for Variable Selection.

rpls - Recursive PLS (and PCR) variable selection.

calibsel - Statistical procedure for variable selection.

vip - Calculate Variable Importance in Projection from regression model.

sratio - Calculates selectivity ratio for a given regression model.

selectvars - Selects variables that are predictive.

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)