R: reStruct Object Coefficients

coef.reStruct {nlme}

R Documentation

reStruct Object Coefficients

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

## S3 method for class 'reStruct'
coef(object, unconstrained, ...)
## S3 replacement method for class 'reStruct'
coef(object, ...) <- value

`object`	an object inheriting from class `"reStruct"`, representing a random effects structure and consisting of a list of `pdMat` objects.
`unconstrained`	a logical value. If `TRUE` the coefficients are returned in unconstrained form (the same used in the optimization algorithm). If `FALSE` the coefficients are returned in "natural", possibly constrained, form. Defaults to `TRUE`.
`value`	a vector with the replacement values for the coefficients associated with `object`. It must be a vector with the same length of `coef(object)` and must be given in unconstrained form.
`...`	some methods for this generic require additional arguments. None are used in this method.

a vector with the coefficients corresponding to object.

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

José Pinheiro and Douglas Bates bates@stat.wisc.edu

rs1 <- reStruct(list(A = pdSymm(diag(1:3), form = ~Score),
  B = pdDiag(2 * diag(4), form = ~Educ)))
coef(rs1)

[Package nlme version 3.1-166 Index]