Names.pdBlocked {nlme}R Documentation

Names of a pdBlocked Object


This method function extracts the first element of the Dimnames attribute, which contains the column names, for each block diagonal element in the matrix represented by object.


## S3 method for class 'pdBlocked':
Names(object, asList, ...)


object an object inheriting from class pdBlocked representing a positive-definite matrix with block diagonal structure
asList a logical value. If TRUE a list with the names for each block diagonal element is returned. If FALSE a character vector with all column names is returned. Defaults to FALSE.
... some methods for this generic require additional arguments. None are used in this method.


if asList is FALSE, a character vector with column names of the matrix represented by object; otherwise, if asList is TRUE, a list with components given by the column names of the individual block diagonal elements in the matrix represented by object.


Jose Pinheiro and Douglas Bates

See Also

Names, Names.pdMat


pd1 <- pdBlocked(list(~Sex - 1, ~age - 1), data = Orthodont)

[Package nlme version 3.1-57 Index]