uncorrectedDocumentation: Uncorrected Stability Measures

In stabm: Stability Measures for Feature Selection

Uncorrected Stability Measures

Description

Uncorrected Stability Measures

Arguments

p

numeric(1) Total number of features in the datasets. Required, if correction.for.chance is set to "estimate" or "exact".

correction.for.chance

character(1) Should a correction for chance be applied? Correction for chance means that if features are chosen at random, the expected value must be independent of the number of chosen features. To correct for chance, the original score is transformed by (score - expected) / (maximum - expected). For stability measures whose score is the average value of pairwise scores, this transformation is done for all components individually. Options are "none", "estimate" and "exact". For "none", no correction is performed, i.e. the original score is used. For "estimate", N random feature sets of the same sizes as the input feature sets (features) are generated. For "exact", all possible combinations of feature sets of the same sizes as the input feature sets are used. Computation is only feasible for very small numbers of features (p) and numbers of considered datasets (length(features)).

stabm documentation built on April 4, 2023, 5:12 p.m.