Repeated Measures and MANOVA

Analysis of variance, repeated measures modeling, and multiple comparisons for data with multiple responses

Functions

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 fitrm Fit repeated measures model ranova Repeated measures analysis of variance mauchly Mauchly’s test for sphericity epsilon Epsilon adjustment for repeated measures anova multcompare Multiple comparison of estimated marginal means anova Analysis of variance for between-subject effects manova Multivariate analysis of variance coeftest Linear hypothesis test on coefficients of repeated measures model grpstats Compute descriptive statistics of repeated measures data by group margmean Estimate marginal means plot Plot data with optional grouping plotprofile Plot expected marginal means with optional grouping predict Compute predicted values given predictor values random Generate new random response values given predictor values
 manova1 One-way multivariate analysis of variance manovacluster Dendrogram of group mean clusters following MANOVA

Classes

 RepeatedMeasuresModel Repeated measures model class

Topics

Repeated Measures

Model Specification for Repeated Measures Models

Learn how to specify a repeated measures model in fitrm.

Mauchly’s Test of Sphericity

Learn the test of sphericity used in repeated measures models.

Compound Symmetry Assumption and Epsilon Corrections

Learn the different epsilon corrections used in p-value calculations in the repeated measures ANOVA when the compound symmetry assumption fails.

Multivariate Analysis of Variance for Repeated Measures

Learn the four different methods used in multivariate analysis of variance for repeated measures models.

Wilkinson Notation

Wilkinson notation provides a way to describe regression and repeated measures models without specifying coefficient values.

MANOVA

MANOVA

MANOVA is a form of ANOVA with multiple response variables. It determines whether the entire set of means is different from one group to the next.