SelectionPerformanceSingle: Selection performance (internal)

In sharp: Stability-enHanced Approaches using Resampling Procedures

Selection performance (internal)

Description

Computes different metrics of selection performance from a categorical vector/matrix with 3 for True Positive, 2 for False Negative, 1 for False Positive and 0 for True Negative.

Usage

SelectionPerformanceSingle(Asum, cor = NULL, thr = 0.5)

Arguments

Asum	vector (in variable selection) or matrix (in graphical modelling) containing values of 0, 1, 2 or 3.
cor	optional correlation matrix. Only used in graphical modelling.
thr	optional threshold in correlation. Only used in graphical modelling and when argument "cor" is not NULL.

Value

A matrix of selection metrics including:

TP	number of True Positives (TP)
FN	number of False Negatives (TN)
FP	number of False Positives (FP)
TN	number of True Negatives (TN)
sensitivity	sensitivity, i.e. TP/(TP+FN)
specificity	specificity, i.e. TN/(TN+FP)
accuracy	accuracy, i.e. (TP+TN)/(TP+TN+FP+FN)
precision	precision (p), i.e. TP/(TP+FP)
recall	recall (r), i.e. TP/(TP+FN)
F1_score	F1-score, i.e. 2*p*r/(p+r)

If argument "cor" is provided, the number of False Positives among correlated (FP_c) and uncorrelated (FP_i) pairs, defined as having correlations (provided in "cor") above or below the threshold "thr", are also reported.

sharp documentation built on April 11, 2025, 5:44 p.m.