Github user dbtsai commented on a diff in the pull request:
https://github.com/apache/spark/pull/1425#discussion_r15013544
--- Diff:
mllib/src/test/scala/org/apache/spark/mllib/classification/LogisticRegressionSuite.scala
---
@@ -81,9 +82,8 @@ class LogisticRegressionSuite extends FunSuite with
LocalSparkContext with Match
val model = lr.run(testRDD)
// Test the weights
- val weight0 = model.weights(0)
- assert(weight0 >= -1.60 && weight0 <= -1.40, weight0 + " not in [-1.6,
-1.4]")
- assert(model.intercept >= 1.9 && model.intercept <= 2.1,
model.intercept + " not in [1.9, 2.1]")
+ assert(model.weights(0).almostEquals(-1.5244128696247), "weight0
should be -1.5244128696247")
--- End diff --
We can have higher relative error here instead. If the implementation is
changed, it's also nice to have a test which can catch the slightly different
behavior. Also, updating those numbers will not take too much time comparing
with the implementation work.
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