MOST: Markov Ordinal State Transition model
Alternative to GEE
12 Matching Annotations
- May 2026
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hbiostat.org hbiostat.org
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hbiostat.org hbiostat.org
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Common choices of F,
includes list of respective link functions. page 362.
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hbiostat.org hbiostat.org
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Dirichlet Priors With Concentration Parameter 0.148 for Intercepts
Prior on the Intercepts: depend on number of levels; automatically estimated by the function.
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Odds ratio capable of being constant Ex: risk factor doubles odds of disease
Great visualization OR vs Risk difference
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hbiostat.org hbiostat.org
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at least one of the training and test samples is not huge
sample size should be not smaller than 20000 before applying split-based strategy
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rexVar function
calculate relative explained variance; see also proportion of chisq for each predictor.
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Strong internal validation using 100 repeats of 10-fold cross-validation or several hundred bootstrap resamples, repeating all analysis steps involving Y afresh at each re-sample and the arbitrariness of selected “important variables” is reported (if variable selection is used)
also appropriate for small sample sizes
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Predictions plot from Rousseeuw (2026)
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Does not harm predictions on model construction sample
about collinearity - as long as collinearity changes across new samples, this holds also for new samples
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hbiostat.org hbiostat.org
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Breiman’s nonnegative garrote (Xiong (2010))
scale-free
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- Aug 2025
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pclambert.net pclambert.net
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understand influence of knot placement
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cyclical trends
example of modeling cyclical trends
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