huaxingao opened a new pull request #27204: [MINOR][ML] Change DecisionTreeClassifier to FMClassifier in OneVsRest setWeightCol test URL: https://github.com/apache/spark/pull/27204 ### What changes were proposed in this pull request? Change ```DecisionTreeClassifier``` to ```FMClassifier``` in ```OneVsRest``` setWeightCol test ### Why are the changes needed? In ```OneVsRest```, if the classifier doesn't support instance weight, ```OneVsRest``` weightCol will be ignored, so unit test has tested one classifier(```LogisticRegression```) that support instance weight, and one classifier (```DecisionTreeClassifier```) that doesn't support instance weight. Since ```DecisionTreeClassifier``` now supports instance weight, we need to change it to the classifier that doesn't have weight support. ### Does this PR introduce any user-facing change? No ### How was this patch tested? Existing test
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