| solve.reStruct {nlme} | R Documentation |
Solve is applied to each pdMat component of a,
which results in inverting the positive-definite matrices they
represent.
## S3 method for class 'reStruct': solve(a, b, ...)
a |
an object inheriting from class reStruct,
representing a random effects structure and consisting of a list of
pdMat objects. |
b |
this argument is only included for consistency with the generic function and is not used in this method function. |
... |
some methods for this generic require additional arguments. None are used in this method. |
an reStruct object similar to a, but with the
pdMat components representing the inverses of the
matrices represented by the components of a.
Jose Pinheiro Jose.Pinheiro@pharma.novartis.com and Douglas Bates bates@stat.wisc.edu
rs1 <- reStruct(list(A = pdSymm(diag(1:3), form = ~Score), B = pdDiag(2 * diag(4), form = ~Educ))) solve(rs1)