org.nd4j.linalg.dimensionalityreduction

Class PCA

java.lang.Object

org.nd4j.linalg.dimensionalityreduction.PCA

public class PCA
extends java.lang.Object

PCA class for dimensionality reduction

Constructor Summary

Constructors

Constructor and Description
PCA()

Method Summary

Modifier and Type	Method and Description
static INDArray	pca(INDArray X, int nDims, boolean normalize) Reduce the dimension of x to the specified number of dimensions.

Methods inherited from class java.lang.Object

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

Constructor Detail

PCA

public PCA()

Method Detail

pca

public static INDArray pca(INDArray X,
                           int nDims,
                           boolean normalize)

Reduce the dimension of x to the specified number of dimensions. Happily based on the great work done in the tsne paper here: http://homepage.tudelft.nl/19j49/t-SNE.html

Parameters:

X - the x to reduce

nDims - the number of dimensions to reduce to

normalize - normalize

Returns:

the reduced dimension