org.nd4j.linalg.ops.reduceops.scalarops

Class Variance

java.lang.Object

org.nd4j.linalg.ops.reduceops.scalarops.BaseScalarOp

org.nd4j.linalg.ops.reduceops.scalarops.Variance

All Implemented Interfaces:

Function<INDArray,java.lang.Double>, ScalarOp

public class Variance
extends BaseScalarOp

Return the variance of an ndarray

Constructor Summary

Constructors

Constructor and Description
Variance()

Method Summary

Modifier and Type	Method and Description
double	accumulate(INDArray arr, int i, double soFar)
java.lang.Double	apply(INDArray input) Returns the result of applying this function to input.
double	var(INDArray arr) Variance (see: apache commons)

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.google.common.base.Function

equals

Constructor Detail

Variance

public Variance()

Method Detail

var

public double var(INDArray arr)

Variance (see: apache commons)

Parameters:

arr - the ndarray to getDouble the variance of

Returns:

the variance for this ndarray

apply

public java.lang.Double apply(INDArray input)

Description copied from interface: Function

Returns the result of applying this function to input. This method is generally expected, but not absolutely required, to have the following properties:

• Its execution does not cause any observable side effects.
• The computation is consistent with equals; that is, Objects.equal(a, b) implies that Objects.equal(function.apply(a), function.apply(b)).

Specified by:

apply in interface Function<INDArray,java.lang.Double>

Overrides:

apply in class BaseScalarOp

accumulate

public double accumulate(INDArray arr,
                         int i,
                         double soFar)

Specified by:

accumulate in class BaseScalarOp