smile.classification

Class LDA.Trainer

java.lang.Object

smile.classification.ClassifierTrainer<double[]>

smile.classification.LDA.Trainer

Enclosing class:

LDA

public static class LDA.Trainer
extends ClassifierTrainer<double[]>

Trainer for linear discriminant analysis.

Constructor Summary

Constructors

Constructor and Description
Trainer() Constructor.

Method Summary

Modifier and Type	Method and Description
LDA.Trainer	setPriori(double[] priori) Sets a priori probabilities of each class.
LDA.Trainer	setTolerance(double tol) Sets covariance matrix singularity tolerance.
LDA	train(double[][] x, int[] y) Learns a classifier with given training data.

Methods inherited from class smile.classification.ClassifierTrainer

setAttributes

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Trainer

public Trainer()

Constructor. The default tolerance to covariance matrix singularity is 1E-4.

Method Detail

setPriori

public LDA.Trainer setPriori(double[] priori)

Sets a priori probabilities of each class.

Parameters:

priori - a priori probabilities of each class.

setTolerance

public LDA.Trainer setTolerance(double tol)

Sets covariance matrix singularity tolerance.

Parameters:

tol - a tolerance to decide if a covariance matrix is singular. The trainer will reject variables whose variance is less than tol².

train

public LDA train(double[][] x,
                 int[] y)

Description copied from class: ClassifierTrainer

Learns a classifier with given training data.

Specified by:

train in class ClassifierTrainer<double[]>

Parameters:

x - the training instances.

y - the training labels.

Returns:

a trained classifier.