nlme (version 3.1-86)

coef.pdMat: pdMat Object Coefficients

Description

This method function extracts the coefficients associated with the positive-definite matrix represented by object.

Usage

## S3 method for class 'pdMat':
coef(object, unconstrained, \dots)
## S3 method for class 'pdMat':
coef(object, \dots) <- value

Arguments

Value

a vector with the coefficients corresponding to object.

SIDE EFFECTS

On the left side of an assignment, sets the values of the coefficients of object to value.

References

Pinheiro, J.C. and Bates., D.M. (1996) "Unconstrained Parametrizations for Variance-Covariance Matrices", Statistics and Computing, 6, 289-296.

See Also

pdMat

Examples

Run this code
coef(pdSymm(diag(3)))

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