MatSqrtInverse

Convenience functions and datasets to be used with Practical Multilevel Modeling using R. The package includes functions for calculating group means, group mean centered variables, and displaying some basic missing data information. A function for computing robust standard errors for linear mixed models based on Liang and Zeger (1986) <doi:10.1093/biomet/73.1.13> and Bell and 'McCaffrey' (2002) <https://www150.statcan.gc.ca/n1/en/pub/12-001-x/2002002/article/9058-eng.pdf?st=NxMjN1YZ> is included as well as a function for checking for level-one homoskedasticity (Raudenbush & Bryk, 2002, ISBN:076191904X).

Francis Huang

MLMusingR

Practical Multilevel Modeling

MatSqrtInverse function

<dl><dt>A</dt>
<dd>The matrix object.</dd></dl>

Arguments

Compute the inverse square root of a matrix — MatSqrtInverse

<dl>

<dt>A</dt>
<dd>The matrix object.</dd>

</dl>

MatSqrtInverse: Compute the inverse square root of a matrix

Description

Usage

Arguments