Description Usage Arguments Details Author(s)
Objects of this class are a matrix of second moments between a set of variables to be used in regression analyses.
1 | is.moments2(object)
|
object |
an object to test. |
An object of class moments2
is square matrix, with an attribute
“vscale
” set to NULL or 1 depending on whether the
moments are unweighted (for normal linear model analyses) or weighted
(for GLS approximation of generalised linear model analysis).
Typically created by calling make.moments2()
and used in
calls to lm.moments2()
and est.moments2()
.
Toby Johnson Toby.x.Johnson@gsk.com
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