Description Usage Arguments Methods References Examples
Invert a symmetric, positive definite square matrix from its Cholesky
decomposition. Equivalently, compute (X'X)^(-1)
from the (R part) of the QR decomposition of X.
Even more generally, given an upper triangular matrix R,
compute (R'R)^(-1).
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x |
a matrix(-like) object; see below. |
... |
not used here; for compatibility with other methods. |
method for the numeric triangular matrices,
built on the MAGMA magma_dpotri
and PLASMA PLASMA_dpotri
.
Martin Maechler, Douglas Bates (Matrix package)
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