huaxingao commented on a change in pull request #29159:
URL: https://github.com/apache/spark/pull/29159#discussion_r458561691
##########
File path:
mllib/src/test/scala/org/apache/spark/ml/util/DefaultReadWriteTest.scala
##########
@@ -64,7 +64,12 @@ trait DefaultReadWriteTest extends TempDirectory { self:
Suite =>
case (Array(values), Array(newValues)) =>
assert(values === newValues, s"Values do not match on param
${p.name}.")
case (value, newValue) =>
- assert(value === newValue, s"Values do not match on param
${p.name}.")
+ if (value.isInstanceOf[Double] &&
value.asInstanceOf[Double].isNaN) {
Review comment:
Before my change, this ```setDefault(strategy -> Imputer.mean,
missingValue -> Double.NaN)``` is in Imputer. Now I moved this to ImputerParams
so ImputerModel also has the default value of ```missingValue``` set to
```Double.NaN```. In ```DefaultReadWriteTest```, it compares the default value
of ```missingValue``` in the original model and the loaded model, so I need to
make the NaN comparison work.
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