ILNumerics - Technical Application Development
Assembly: ILNumerics.Toolboxes.Statistics (in ILNumerics.Toolboxes.Statistics.dll) Version: 5.5.0.0 (5.5.7503.3146)
Variance of vector A/Covariance matrix of A.
Covariance matrix of A.
[ILNumerics Statistics Toolbox]
Namespace: ILNumerics.Toolboxes
Assembly: ILNumerics.Toolboxes.Statistics (in ILNumerics.Toolboxes.Statistics.dll) Version: 5.5.0.0 (5.5.7503.3146)
Syntax
Parameters
- A
- Type: ILNumericsInArraySingle
Input vector or data matrix, samples in columns, variables in rows. - unbiased (Optional)
- Type: SystemBoolean
[Optional] If true, calculate the best unbiased variance estimate if the observations are from a normal distribution. This normalized by n-1 if n>1 (n = number of samples). If n == 1 normalization is always 1. If false always normalize by n.
Return Value
Type: RetArraySingleVariance of vector A/Covariance matrix of A.
Remarks
If A is a vector cov(A) returns the variance of A.
If A is a m x n matrix, where each of the n columns is an m-dimensional observation, cov(A) is the n x n covariance matrix.
The mean is removed from each column before calculating the result.
[ILNumerics Statistics Toolbox]
See Also