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In This Issue. [PDF]

open access: yesProc Natl Acad Sci U S A
europepmc   +1 more source

Bivariate Linear Mixed Models Using SAS Proc MIXED [PDF]

open access: yesComputer Methods and Programs in Biomedicine, 2002
Bivariate linear mixed models are useful when analyzing longitudinal data of two associated markers. In this paper, we present a bivariate linear mixed model including random effects or first-order auto-regressive process and independent measurement error for both markers.
Rodolphe Thiébaut   +2 more
exaly   +9 more sources

On Using Proc Mixed for Longitudinal Data [PDF]

open access: yesConference on Applied Statistics in Agriculture, 1999
PROC MIXED has become a standard tool for analyzing repeated measures data. Its popularity results from a wide choice of correlated error models compared to other software, e.g. PROC GLM. However, PROC MIXED\u27s versatility comes at a price.
Walter W Stroup
exaly   +4 more sources

Using SAS PROC MIXED to Demystify the Hierarchical Linear Model [PDF]

open access: yesJournal of Experimental Education, 1997
Abstract Hierarchical data analyses in different disciplines are reviewed to compare statistical applications of the Hierarchical Linear Model (HLM) software and the SAS MIXED procedure. Similar features of the 2 programs are illustrated through use of the SAS MIXED procedure to confirm an HLM example.
Jianjun Wang
exaly   +3 more sources
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An Example of Using Mixed Models and Proc Mixed for Longitudinal Data

Journal of Biopharmaceutical Statistics, 1997
Longitudinal data, or data that are repeated measurements on various subjects across time, are commonplace in biostatistical studies. The general linear mixed model is a useful statistical tool for analyzing such data and drawing meaningful inferences about them.
Russ Wolfinger
exaly   +3 more sources

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