This type of plot is heavily inspired by Wu and Zhang (2006). A plot containing four panels is produced: (1) standardised residuals against fitted values, (2) standardised residuals against time, (3) standardised residuals against response and (4) a normal Q-Q plot of the standardised residuals. These plots can be used to assess how well the fitted model has accounted for the temporal correlation and between-subject variance in the data.
an object inheriting from class
A four panel plot as described above.
Maurice Berk email@example.com
Berk, M. (2012). Smoothing-splines Mixed-effects Models in R. Preprint
Wu, H. and Zhang, J.-T. (2006). Nonparametric Regression Methods for Longitudinal Data Analysis. Wiley
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