check_classes: Check classes of all variables used in the model

In JointAI: Joint Analysis and Imputation of Incomplete Data

Check classes of all variables used in the model

Description

Runs a check that all variables that are used in the model are of a known class (numeric, ordered, factor, logical, integer) so that type-appropriate models can be specified. Note: This function does not check the type of grouping variables, which may be character strings.

Usage

check_classes(data, fixed = NULL, random = NULL, auxvars = NULL,
  timevar = NULL, mess = TRUE)

Arguments

data	a data.frame
fixed	a formula
random	a formula
auxvars	a one-sided formula
timevar	a character string (name of the time variable, used in joint models)
mess	logical, if TRUE messages are printed

Details

used in model_imp (2020-06-09)

Value

nothing, but throws an error if a variable is of an unknown class

JointAI documentation built on Jan. 30, 2026, 5:07 p.m.