estmb {sasLM}

Estimability Check

Description

Check the estimability of row vectors of coefficients.

Usage

  estmb(L, X, g2, eps=1e-8)

Arguments

L

row vectors of coefficients

X

a model (design) matrix from ModelMatrix

g2

g2 generalized inverse of crossprod(X)

eps

absolute value less than this is considered to be zero.

Details

It checks the estimability of L, row vectors of coefficients. This corresponds to SAS PROC GLM ESTIMATE. See <Kennedy Jr. WJ, Gentle JE. Statistical Computing. 1980> p361 or <Golub GH, Styan GP. Numerical Computations for Univariate Linear Models. 1971>.

Value

a vector of logical values indicating which row is estimable (as TRUE)

Author(s)

Kyun-Seop Bae [e-mail]

See Also

G2SWEEP