Rulefit: bug in multinomial classification

[exalate-issue-sync]

there is a bug for multinomial rfit case reproducible by this:

{code:java}
final Frame trainingFrame = parseTestFile("./smalldata/iris/iris_wheader.csv");
Scope.track(trainingFrame);

        final RuleFitModel.RuleFitParameters ruleFitParameters = new RuleFitModel.RuleFitParameters();
        ruleFitParameters._train = trainingFrame._key;
        ruleFitParameters._distribution = DistributionFamily.laplace;
        ruleFitParameters._response_column = "class";
        ruleFitParameters._seed = 0XFEED;
        ruleFitParameters._model_type = RuleFitModel.ModelType.RULES_AND_LINEAR;
        ruleFitParameters._max_rule_length = 5;
        ruleFitParameters._min_rule_length = 1;
        ruleFitParameters._max_num_rules = 1000;

        final RuleFit ruleFit = new RuleFit(ruleFitParameters);
        final RuleFitModel ruleFitModel = ruleFit.trainModel().get();

{code}

[exalate-issue-sync]

Zuzana Olajcová commented: resolved in #5765

[h2o-ops]

JIRA Issue Details

Jira Issue: PUBDEV-8133
Assignee: Zuzana Olajcová
Reporter: Zuzana Olajcová
State: Resolved
Fix Version: 3.34.0.4
Attachments: N/A
Development PRs: Available

[h2o-ops]

Linked PRs from JIRA

#5765
#5831