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-rw-r--r--R/pkg/inst/tests/test_mllib.R10
1 files changed, 9 insertions, 1 deletions
diff --git a/R/pkg/inst/tests/test_mllib.R b/R/pkg/inst/tests/test_mllib.R
index f272de78ad..032f8ec68b 100644
--- a/R/pkg/inst/tests/test_mllib.R
+++ b/R/pkg/inst/tests/test_mllib.R
@@ -49,6 +49,14 @@ test_that("dot minus and intercept vs native glm", {
expect_true(all(abs(rVals - vals) < 1e-6), rVals - vals)
})
+test_that("feature interaction vs native glm", {
+ training <- createDataFrame(sqlContext, iris)
+ model <- glm(Sepal_Width ~ Species:Sepal_Length, data = training)
+ vals <- collect(select(predict(model, training), "prediction"))
+ rVals <- predict(glm(Sepal.Width ~ Species:Sepal.Length, data = iris), iris)
+ expect_true(all(abs(rVals - vals) < 1e-6), rVals - vals)
+})
+
test_that("summary coefficients match with native glm", {
training <- createDataFrame(sqlContext, iris)
stats <- summary(glm(Sepal_Width ~ Sepal_Length + Species, data = training))
@@ -57,5 +65,5 @@ test_that("summary coefficients match with native glm", {
expect_true(all(abs(rCoefs - coefs) < 1e-6))
expect_true(all(
as.character(stats$features) ==
- c("(Intercept)", "Sepal_Length", "Species__versicolor", "Species__virginica")))
+ c("(Intercept)", "Sepal_Length", "Species_versicolor", "Species_virginica")))
})