rockchalk: checkPosDef – R documentation

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checkPosDef

Check a matrix for positive definitness

Uses eigen to check positive definiteness. Follows example used in MASS package by W. N. Venables and Brian D. Ripley

checkPosDef(X, tol = 1e-06)

`X`	A matrix
`tol`	Tolerance (closeness to 0 required to declare failure)

TRUE or FALSE

Paul E. Johnson <pauljohn@ku.edu>

Regression Estimation and Presentation

v1.8.144

GPL (>= 3.0)

Authors

Paul E. Johnson [aut, cre], Gabor Grothendieck [ctb]

Initial release

2019-03-07