is.positive.definite: Is a matrix positive definite?
In calibrator: Bayesian Calibration of Complex Computer Codes

Returns TRUE if and only if a matrix is positive definite.

1	is.positive.definite(a, ...)

`a`	Matrix to be tested
`...`	Extra arguments passed to `eigen()`, such as `symmetric`.

A wrapper for eigen() (a matrix is positive definite if all its eigenvalues are positive). This function is included for convenience only.

Robin K. S. Hankin

1 2	is.positive.definite(diag(3),sym=TRUE) is.positive.definite(diag(6)-0.1)

calibrator documentation built on May 1, 2019, 9:17 p.m.

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Package overview Calex: a cookbook for the emulator package

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