[jira] (SPARK-19400) GLM fails for intercept only model

[Wayne Zhang (JIRA)]

Title: Message Title

Wayne Zhang created an issue   Spark / SPARK-19400 GLM fails for intercept only model Issue Type: Bug Assignee: Unassigned Created: 30/Jan/17 08:07 Priority: Major Reporter: Wayne Zhang Intercept-only GLM fails for non-Gaussian family because of reducing an empty array in IWLS. val dataset = Seq( (1.0, 1.0, 2.0, 0.0, 5.0), (0.5, 2.0, 1.0, 1.0, 2.0), (1.0, 3.0, 0.5, 2.0, 1.0), (2.0, 4.0, 1.5, 3.0, 3.0) ).toDF("y", "w", "off", "x1", "x2") val formula = new RFormula().setFormula("y ~ 1") val output = formula.fit(dataset).transform(dataset) val glr = new GeneralizedLinearRegression().setFamily("poisson") val model = glr.fit(output) java.lang.UnsupportedOperationException: empty.reduceLeft Add Comment   This message was sent by Atlassian JIRA (v6.3.15#6346-sha1:dbc023d)