context("Testing sparse Matrix")
test_that("caret can return sparse Matrix object", {
skip_on_cran()
skip_if_not_installed('glmnet')
skip_if_not_installed('Matrix')
x <- Matrix::Matrix(as.matrix(mtcars)[, -1], sparse=TRUE)
y <- mtcars$mpg
expect_warning(train(x, y, method="glmnet"), NA)
expect_warning(train(as.matrix(x), y, method="glmnet"), NA)
})
Generated by dwww version 1.15 on Tue Jul 2 09:13:43 CEST 2024.