multivator (version 1.1-9)

ipd: Positive definite matrices

Description

Is a matrix symmetric positive-definite?

Usage

ipd(mat)

Arguments

mat

A matrix

Value

Returns either TRUE if symmetric positive-definite; or FALSE, printing a diagnostic message.

Examples

# NOT RUN {
data(mtoys)
stopifnot(ipd(crossprod(matrix(rnorm(30),10))))
stopifnot(ipd(M(toy_mhp)))
# }

Run the code above in your browser using DataCamp Workspace