Class "pdCompSymm"

Description

A class of parameterized positive-definite symmetric matrices that have compound symmetry. That is, the diagonal entries are constant and the off-diagonal entries are constant.

Objects from the Class

Objects can be created by calls of the form new("pdCompSymm", ...) or by calls to the constructor pdCompSymm(...)

Slots

param:

Object of class "numeric" - a parameter vector of length 2

ncol:

Object of class "integer" - the number of columns (and rows) in the matrix.

form:

Object of class "formula", from class "pdMat" - an optional formula relating the object to a model matrix.

Names:

Object of class "character", from class "pdMat" - dimnames for the matrix

Extends

Class "pdMat", directly.

Methods

coef

signature(x = "pdCompSymm"): get the parameter vector

coef<-

signature(object = "pdCompSymm", value = "numeric"): set the parameter vector

coef<-

signature(object = "pdCompSymm", value = "matrix"): set the parameter vector from a model matrix

coerce

signature(from = "pdCompSymm", to = "matrix"): get the positive-definite symmetric matrix represented by the object.

corMatrix

signature(object = "pdCompSymm"): get the matrix represented by the object as a correlation matrix (with standard deviations)

dim

signature(x = "pdCompSymm"): get the dimensions of the matrix represented by the object.

isInitialized

signature(object = "pdCompSymm"): check if the object has been initialized.

logDet

signature(object = "pdCompSymm", covariate = "missing"): get the logarithm of the determinant of the matrix

pdFactor

signature(object = "pdCompSymm"): get a square root factor of the matrix represented by the object.

pdMatrix

signature(object = "pdCompSymm", factor = "logical"): get the positive-definite symmetric matrix represented by the object.

summary

signature(object = "pdCompSymm"):

Author(s)

Douglas Bates bates@stat.wisc.edu and Saikat DebRoy saikat@stat.wisc.edu

See Also

Examples