create_monotone_constraints: create monotone constraints

In autostats: Auto Stats

create monotone constraints

Description

helper function to create the integer vector to pass to the monotone_constraints argument in xgboost

Usage

create_monotone_constraints(
  .data,
  formula,
  decreasing = NULL,
  increasing = NULL
)

Arguments

.data	dataframe, training data for tidy_xgboost
formula	formula used for tidy_xgboost
decreasing	character vector or tidyselect regular expression to designate decreasing cols
increasing	character vector or tidyselect regular expression to designate increasing cols

Value

a named integer vector with entries of 0, 1, -1

Examples

iris %>%
framecleaner::create_dummies(Species) -> iris_dummy

iris_dummy %>%
 tidy_formula(target= Petal.Length) -> petal_form

iris_dummy %>%
 create_monotone_constraints(petal_form,
                             decreasing = tidyselect::matches("Petal|Species"),
                             increasing = "Sepal.Width")

autostats documentation built on Nov. 10, 2022, 6:13 p.m.