Random coefficient regression can be used when we want to explore the relationship between a response variable (y) and a continuous explanatory variable (x) and we have repeated measurements of x and y on individual subjects.
Estimating critical values for REML fixed effects
VCRITICAL provides an alternative method of assessment to Wald or F tests that may be useful if the decision from the conventional tests is not clear-cut, or if contrasts are to be assessed.
Procedures for assessing the adequacy of a model in a REML analysis
VRCHECK can assess the adequacy of a linear mixed model fitted using REML.
VSOM can be used to assess the residuals and random effects for outliers.
VRCHECK can be used to check the properties of the random effects.
Performs permutation tests for random terms in