PrincipalComponent Class

public class PrincipalComponent

Public Class PrincipalComponent

public ref class PrincipalComponent

type PrincipalComponent =  class end

The PrincipalComponent type exposes the following members.

	Name	Description
	CumulativeProportionOfVariance	Gets the proportion of variance explained by the component and all more significant components.
	Eigenvalue	Gets the eigenvalue of the component.
	EigenvalueDifference	Gets the difference between the eigenvalues of the component and the next most significant component.
	Eigenvector	Gets the eigenvector for the component.
	Index	Gets the index of the component.
	Model	Gets the PrincipalComponentAnalysis this component is associated with.
	ProportionOfVariance	Gets the proportion of variance explained by the component.
	Value	Gets the value of the component.

	Name	Description
	Equals	Determines whether the specified object is equal to the current object. (Inherited from Object.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
	GetChiSquareTest	Gets a chi square test whether the current component's contribution to the variance is significantly different from all remaining components.
	GetHashCode	Serves as the default hash function. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	ToString	Returns a string that represents the current object. (Inherited from Object.)

Use the PrincipalComponent class to obtain more information about a component in a principal component analysis. The information includes: the Index of the component in the sequence in descending order of contribution to variance explained, the ProportionOfVariance, the CumulativeProportionOfVariance, the Eigenvalue which is an indicator of the absolute size of the contribution, and the EigenvalueDifference which gives the difference between the eigenvalues of this component and the next most significant one.

To get the numerical value of the component, use the Value method, which returns a Vector.

PrincipalComponent objects can not be created directly. They are created by the PrincipalComponentAnalysis object they belong to. They can be retrieved through the Components property of the PrincipalComponent object.

Reference