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Longitudinal Data Analysis - Don Hedeker
Programs, PDF Files, Datasets, and Examples
Mixed-effects Regression Models for Longitudinal Data: An Applied Introduction: long1.pdf
An example and dataset using SAS PROC MIXED: RIESBYM.SAS - ASCII file with SAS code from analysis of Riesby dataset using a few different MIXED models. Includes grouping variable and curvilinear effect of time. RIESBY.DAT - ASCII datafile for example above.
Mixed-effects Pattern-Mixture Models for Missing Data: Long2.pdf
An example and dataset using SAS PROC MIXED: schizpm2.sas - ASCII file with SAS code from analysis of NIMH Schizophrenia dataset to perform a pattern-mixture analysis. Includes IML code to do the mixing over the pattern results. SCHIZREP.DAT - ASCII datafile for example above.
PDF files for mixed-effects analysis of categorical data
Mixed Models for Longitudinal Dichotomous Data: Long3.pdf An example and dataset using SAS PROC NLMIXED: schzbnl.sas - SAS code for mixed-effects logistic regression analysis of NIMH Schizophrenia data. SCHIZX1.DAT - ASCII datafile for example above.
Mixed Models for Longitudinal Ordinal Data: Long4.pdf An example using SAS PROC NLMIXED: schzonl.sas - SAS code for mixed-effects ordinal logistic regression analysis of NIMH Schizophrenia data.
Mixed Models for Longitudinal Ordinal & Nominal Data: Long5.pdf Examples and dataset using SAS PROC NLMIXED: sandonl.sas - SAS code for mixed-effects proportional odds and non-proportional odds analyses of San Diego homelessness data. sandnnl.sas - SAS code for mixed-effects multinomial analyses of San Diego homelessness data. sdhouse.dat - ASCII datafile for examples above.
Freeware Programs for Mixed-effects Regression Analysis of Categorical Outcomes
MIXOR - setup file for MIXOR (software for mixed-effects ordinal regression)
MIXOR documentation:
- Mixorcm.PDF is the original MIXOR manual (same as Hedeker & Gibbons, 1996, MIXOR: a computer program for mixed-effects ordinal regression analysis, Computer Methods and Programs in Biomedicine, 49:157-176).
- mixori.pdf is the user's guide for the program's Windows interface.
- mixore2.PDF briefly describes extensions to original MIXOR, including program syntax, that are included in version 2.0. A more complete update will follow.
- mixorex.PDF describes the datasets and definition files that are included with MIXOR version 2.0 to illustrate its new features. ns
- mixore2b.pdf depicts the MIXOR screens for the examples used to illustrate MIXOR version 2.0 and its new features.
MIXNO - setup file for MIXNO (software for mixed-effects nominal logistic regression)
MIXNO documentation
- mixnocm.PDF is the MIXNO manual. mixnoi.pdf is the user's guide for the program's Windows interface.
Mixed-effects Logistic Regression Examples using MIXOR
MIXOR definition files for random intercept and random int & trend models of NIMH Schizophrenia dataset.
SCHIZX1.DAT - ASCII datafile for example above.
mixorsc1.sas - ASCII file with SAS IML code for marginalizing results of mixed-effects logistic regression.
Mixed-effects Ordinal Logistic Regression Examples using MIXOR
MIXOR definition files for random intercept and random int & trend models of NIMH Schizophrenia dataset.
SCHIZX1.DAT - ASCII datafile for example above.
mixorsc2.sas - ASCII file with SAS IML code for marginalizing results of mixed-effects ordinal logistic regression.
Mixed-effects Ordinal & Nominal Logistic Regression Examples using MIXOR and MIXNO
sdhous1.def proportional odds model: MIXOR
sdhous2.def non-proportional odds model: MIXOR
sdhouse.def nominal logistic regression model: MIXNO
MIXOR & MIXNO definition files for random intercept (ordinal & nominal) models - San Diego homeless dataset.
sdhouse.DAT - ASCII datafile for example above.
mixorsd2.sas - ASCII file with SAS IML code for marginalizing results of mixed-effects ordinal logistic regression.
mixnosd2.sas - ASCII file with SAS IML code for marginalizing results of mixed-effects nominal logistic regression.
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