viirya commented on a change in pull request #20146: [SPARK-11215][ML] Add
multiple columns support to StringIndexer
URL: https://github.com/apache/spark/pull/20146#discussion_r247329790
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File path: R/pkg/tests/fulltests/test_mllib_regression.R
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@@ -102,10 +102,18 @@ test_that("spark.glm and predict", {
})
test_that("spark.glm summary", {
+ # prepare dataset
Review comment:
Here I handcrafted tiny dataset (8 rows) to replace iris dataset (150 rows).
Because iris dataset contains a column which has frequently equal string values
(50 times for 3 strings) and we can't config R's string indexer, it makes
trouble to produce same results for this test.
There are few discussions
https://github.com/apache/spark/pull/20146#issuecomment-355764569 for this.
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