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nlme

as.matrix.reStruct

Matrices of an reStruct Object

Description

This method function extracts the positive-definite matrices corresponding to the pdMat elements of object.

Usage

## S3 method for class 'reStruct'
as.matrix(x, ...)

Arguments

x

an object inheriting from class "reStruct", representing a random effects structure and consisting of a list of pdMat objects.
...

further arguments passed from other methods.

Value

a list with components given by the positive-definite matrices corresponding to the elements of object.

Author(s)

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

References

Pinheiro, J. C. and Bates, D. M. (2000), Mixed-Effects Models in S and S-PLUS, Springer, New York.

See Also

Examples

rs1 <- reStruct(pdSymm(diag(3), ~age+Sex, data = Orthodont))
as.matrix(rs1)
nlme

Linear and Nonlinear Mixed Effects Models

v3.1-152
GPL (>= 2) | file LICENCE
Authors
José Pinheiro [aut] (S version), Douglas Bates [aut] (up to 2007), Saikat DebRoy [ctb] (up to 2002), Deepayan Sarkar [ctb] (up to 2005), EISPACK authors [ctb] (src/rs.f), Siem Heisterkamp [ctb] (Author fixed sigma), Bert Van Willigen [ctb] (Programmer fixed sigma), Johannes Ranke [ctb] (varConstProp()), R-core [aut, cre]
Initial release
2021-02-03

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