diff options
Diffstat (limited to 'mllib')
| -rw-r--r-- | mllib/src/main/scala/org/apache/spark/ml/feature/RFormula.scala | 2 | ||||
| -rw-r--r-- | mllib/src/main/scala/org/apache/spark/ml/feature/RFormulaParser.scala | 14 |
2 files changed, 14 insertions, 2 deletions
diff --git a/mllib/src/main/scala/org/apache/spark/ml/feature/RFormula.scala b/mllib/src/main/scala/org/apache/spark/ml/feature/RFormula.scala index 2916b6d9df..a7ca0fe252 100644 --- a/mllib/src/main/scala/org/apache/spark/ml/feature/RFormula.scala +++ b/mllib/src/main/scala/org/apache/spark/ml/feature/RFormula.scala @@ -182,7 +182,7 @@ class RFormula(override val uid: String) override def copy(extra: ParamMap): RFormula = defaultCopy(extra) - override def toString: String = s"RFormula(${get(formula)}) (uid=$uid)" + override def toString: String = s"RFormula(${get(formula).getOrElse("")}) (uid=$uid)" } @Since("2.0.0") diff --git a/mllib/src/main/scala/org/apache/spark/ml/feature/RFormulaParser.scala b/mllib/src/main/scala/org/apache/spark/ml/feature/RFormulaParser.scala index 19aecff038..2dd565a782 100644 --- a/mllib/src/main/scala/org/apache/spark/ml/feature/RFormulaParser.scala +++ b/mllib/src/main/scala/org/apache/spark/ml/feature/RFormulaParser.scala @@ -126,7 +126,19 @@ private[ml] case class ParsedRFormula(label: ColumnRef, terms: Seq[Term]) { * @param hasIntercept whether the formula specifies fitting with an intercept. */ private[ml] case class ResolvedRFormula( - label: String, terms: Seq[Seq[String]], hasIntercept: Boolean) + label: String, terms: Seq[Seq[String]], hasIntercept: Boolean) { + + override def toString: String = { + val ts = terms.map { + case t if t.length > 1 => + s"${t.mkString("{", ",", "}")}" + case t => + t.mkString + } + val termStr = ts.mkString("[", ",", "]") + s"ResolvedRFormula(label=$label, terms=$termStr, hasIntercept=$hasIntercept)" + } +} /** * R formula terms. See the R formula docs here for more information: |