classres: Results of classification

In mdatools: Multivariate Data Analysis for Chemometrics

Results of classification

Description

classres is used to store results classification for one or multiple classes.

Usage

classres(c.pred, c.ref = NULL, p.pred = NULL, ncomp.selected = 1)

Arguments

c.pred	matrix with predicted values (+1 or -1) for each class.
c.ref	matrix with reference values for each class.
p.pred	matrix with probability values for each class.
ncomp.selected	vector with selected number of components for each class.

Details

There is no need to create a classres object manually, it is created automatically when build a classification model (e.g. using simca or plsda) or apply the model to new data. For any classification method from mdatools, a class using to represent results of classification (e.g. simcares) inherits fields and methods of classres.

Value

c.pred	predicted class values (+1 or -1).
p.pred	predicted class probabilities.
c.ref	reference (true) class values if provided.

The following fields are available only if reference values were provided.

tp	number of true positives.
tn	number of true negatives.
fp	nmber of false positives.
fn	number of false negatives.
specificity	specificity of predictions.
sensitivity	sensitivity of predictions.
misclassified	ratio of misclassified objects.

See Also

Methods classres class:

showPredictions.classres	shows table with predicted values.
plotPredictions.classres	makes plot with predicted values.
plotSensitivity.classres	makes sn plot.
plotSpecificity.classres	makes specificity plot.
plotMisclassified.classres	makes ms ratio plot.
plotPerformance.classres	makes plot with misclassified ratio, specificity and sensitivity values.

mdatools documentation built on Sept. 11, 2024, 7:59 p.m.