| solve.pdMat {nlme} | R Documentation |
The positive-definite matrix represented by a is inverted and
assigned to a.
## S3 method for class 'pdMat': solve(a, b, ...)
a |
an object inheriting from class pdMat, representing
a positive definite matrix. |
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. |
a pdMat object similar to a, but with coefficients
corresponding to the inverse of the positive-definite matrix
represented by a.
Jose Pinheiro Jose.Pinheiro@pharma.novartis.com and Douglas Bates bates@stat.wisc.edu
pd1 <- pdCompSymm(3 * diag(3) + 1) solve(pd1)