Github user junyangq commented on a diff in the pull request:
https://github.com/apache/spark/pull/14856#discussion_r76844264
--- Diff: R/pkg/inst/tests/testthat/test_mllib.R ---
@@ -99,6 +99,10 @@ test_that("spark.glm summary", {
expect_match(out[2], "Deviance Residuals:")
expect_true(any(grepl("AIC: 59.22", out)))
+ # Test spark.glm works with regularization parameter
+ regStats <- summary(spark.glm(training, Sepal_Width ~ Sepal_Length +
Species, regParam = 0.3))
+ expect_equal(regStats$aic, 136.7, tolerance = 1e-3)
--- End diff --
I remember it should match the result of `glmnet`? Perhaps you can try the
same example there or take a look at
https://github.com/apache/spark/blob/master/mllib/src/test/scala/org/apache/spark/ml/regression/GeneralizedLinearRegressionSuite.scala#L307
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