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 |
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
.
JosÃ© Pinheiro and Douglas Bates bates@stat.wisc.edu
pd1 <- pdCompSymm(3 * diag(3) + 1) solve(pd1)