extend.formulaDS: Extends a formula with predictors
In stefvanbuuren/dsMiceClient: Distributed Multiple Imputations

Extends a formula with predictors

1 2	extend.formulaDS(formula = ~0, predictors = NULL, auxiliary = TRUE, include.intercept = FALSE, ...)

`formula`	A formula. If it is not a formula, the formula is internally reset to `~0`.
`predictors`	A character vector of variable names.
`auxiliary`	A logical that indicates whether the variables listed in `predictors` should be added to the formula as main effects. The default is `TRUE`.
`include.intercept`	A logical that indicated whether the intercept should be included in the result.