xAx: Given a numeric vector x and a numeric matrix A, calculates...
In benjnguyen/NguyenTools: Tools for STAT 3701

Computes x'inv(A)x of a numeric matrix A and numeric vector x.

xAx(a, x)

`x`	numeric vector
`A`	numeric matrix

scalar number computed by x'inv(A)x

load(url("http://www.stat.umn.edu/geyer/3701/data/q2p1.rda"))
ls()
a <- as.matrix(a)
x <- as.matrix(x)
xAx(a, x)

benjnguyen/NguyenTools documentation built on May 25, 2019, 3:22 p.m.

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