Github user felixcheung commented on a diff in the pull request: https://github.com/apache/spark/pull/16630#discussion_r102564507 --- Diff: mllib/src/main/scala/org/apache/spark/ml/r/GeneralizedLinearRegressionWrapper.scala --- @@ -99,37 +95,23 @@ private[r] object GeneralizedLinearRegressionWrapper val summary = glm.summary val rFeatures: Array[String] = if (glm.getFitIntercept) { - Array("(Intercept)") ++ features + Array("(Intercept)") ++ summary.featureNames } else { - features + summary.featureNames } val rCoefficients: Array[Double] = if (summary.isNormalSolver) { - val rCoefficientStandardErrors = if (glm.getFitIntercept) { - Array(summary.coefficientStandardErrors.last) ++ - summary.coefficientStandardErrors.dropRight(1) - } else { - summary.coefficientStandardErrors - } + val rCoefficientStandardErrors = + summary.summaryTable.select("StdError").collect.map(_.getDouble(0)) - val rTValues = if (glm.getFitIntercept) { - Array(summary.tValues.last) ++ summary.tValues.dropRight(1) - } else { - summary.tValues - } + val rTValues = + summary.summaryTable.select("TValue").collect.map(_.getDouble(0)) - val rPValues = if (glm.getFitIntercept) { - Array(summary.pValues.last) ++ summary.pValues.dropRight(1) - } else { - summary.pValues - } + val rPValues = + summary.summaryTable.select("PValue").collect.map(_.getDouble(0)) - if (glm.getFitIntercept) { - Array(glm.intercept) ++ glm.coefficients.toArray ++ - rCoefficientStandardErrors ++ rTValues ++ rPValues - } else { - glm.coefficients.toArray ++ rCoefficientStandardErrors ++ rTValues ++ rPValues - } + summary.summaryTable.select("Coefficient").collect.map(_.getDouble(0)) ++ + rCoefficientStandardErrors ++ rTValues ++ rPValues --- End diff -- Could you run a quick check to see if the values in the SparkR summary are the same before and after this change?
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