Expand assignment conditions — expand_conditions • DeclareDesign

Internal helper to eagerly build assignment conditions for potential outcomes.

Usage

expand_conditions(
  formula,
  conditions = c(0, 1),
  assignment_variables = "Z",
  data,
  level = NULL,
  label = NULL
)

conditions: the conditions
assignment_variables: the name of assignment variables, if conditions is not already named.

a data.frame of potential outcome conditions

If conditions is a data.frame, it is returned unchanged

Otherwise, if conditions is a list, it is passed to expand.grid for expansion to a data.frame

Otherwise, if condition is something else, box it in a list with assignment_variables for names, and pass that to expand.grid.