tests/testthat/test-auc_table.SuperLearner.R

In ck37/ck37r: Chris Kennedy's R Toolkit

library(ck37r)
library(SuperLearner)

# Only run test if necessary suggested packages are installed.
pkg_suggests = c("testthat")
if (!all(suppressWarnings(sapply(pkg_suggests, require, quietly = TRUE,
                                 character.only = TRUE))))
  return()

context("SL auc table")

data(Boston, package = "MASS")

set.seed(1, "L'Ecuyer-CMRG")

# Subset rows to speed up example computation.
row_subset = sample(nrow(Boston), 200)

Boston = Boston[row_subset, ]

# Outcome needs to be a binary variable.
X = subset(Boston, select = -chas)

sl = SuperLearner(Boston$chas, X[, 1:3], family = binomial(),
                  cvControl = list(V = 2, stratifyCV = T),
                  SL.library = c("SL.mean", "SL.glm"))

auc_table(sl, y = Boston$chas)

# Test deprecated version.
# This will appropriately generate a warning.
suppressWarnings({
  sl_auc_table(sl, y = Boston$chas)
})