Stats.Covariance
Definition
Namespace: Extreme.Statistics
Assembly: Extreme.Numerics (in Extreme.Numerics.dll) Version: 8.1.23
Assembly: Extreme.Numerics (in Extreme.Numerics.dll) Version: 8.1.23
Overload List
| Covariance | Returns the covariance matrix for an array of numerical variables. |
| Covariance | Returns the covariance matrix for the columns in a matrix. |
Stats.CovarianceMatrix(IList<Vector<Double>>)
Returns the covariance matrix for an array of numerical variables.
public static SymmetricMatrix<double> CovarianceMatrix(
this IList<Vector<double>> variables
)Parameters
Return Value
SymmetricMatrix<Double>A symmetric matrix containing the covariance between the elements of variables.
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type IList<Vector<Double>>. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).Exceptions
| ArgumentNullException | variables is null. |
| ArgumentException | One or more of the elements of variables is null. -or- Not all elements of variables have the same length. |
Stats.CovarianceMatrix<T>(Matrix<T>, MultipleMissingValueAction)
Returns the covariance matrix for the columns in a matrix.
public static SymmetricMatrix<T> CovarianceMatrix<T>(
this Matrix<T> matrix,
MultipleMissingValueAction missingValueAction = MultipleMissingValueAction.Default
)
Parameters
- matrix Matrix<T>
- A matrix.
- missingValueAction MultipleMissingValueAction (Optional)
- The action to take when missing values are encountered. The default is list-wise deletion.
Type Parameters
- T
Return Value
SymmetricMatrix<T>A symmetric matrix containing the covariances between the columns of matrix.
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type Matrix<T>. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).Exceptions
| ArgumentNullException | matrix is null. |