16 lines
462 B
R
16 lines
462 B
R
context('Test Poisson regression model')
|
|
|
|
set.seed(1994)
|
|
|
|
test_that("Poisson regression works", {
|
|
data(mtcars)
|
|
bst <- xgb.train(
|
|
data = xgb.DMatrix(as.matrix(mtcars[, -11]), label = mtcars[, 11]),
|
|
objective = 'count:poisson', nrounds = 10, verbose = 0, nthread = 2
|
|
)
|
|
expect_equal(class(bst), "xgb.Booster")
|
|
pred <- predict(bst, as.matrix(mtcars[, -11]))
|
|
expect_equal(length(pred), 32)
|
|
expect_lt(sqrt(mean((pred - mtcars[, 11])^2)), 1.2)
|
|
})
|