[SPARK-7547] [ML] Scala Example code for ElasticNet

This is scala example code for both linear and logistic regression. Python and Java versions are to be added.

Author: DB Tsai <dbt@netflix.com>

Closes #6576 from dbtsai/elasticNetExample and squashes the following commits:

e7ca406 [DB Tsai] fix test
6bb6d77 [DB Tsai] fix suite and remove duplicated setMaxIter
136e0dd [DB Tsai] address feedback
1ec29d4 [DB Tsai] fix style
9462f5f [DB Tsai] add example

(cherry picked from commit a86b3e9b9b75f5af4fdbba22e87769058f023204)
Signed-off-by: Joseph K. Bradley <joseph@databricks.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/mllib/src/test/scala/org/apache/spark/ml/param/ParamsSuite.scala b/mllib/src/test/scala/org/apache/spark/ml/param/ParamsSuite.scala
index 04f2af4727..9027cddbb5 100644
--- a/mllib/src/test/scala/org/apache/spark/ml/param/ParamsSuite.scala
+++ b/mllib/src/test/scala/org/apache/spark/ml/param/ParamsSuite.scala
@@ -27,7 +27,7 @@ class ParamsSuite extends FunSuite {
     import solver.{maxIter, inputCol}
 
     assert(maxIter.name === "maxIter")
-    assert(maxIter.doc === "max number of iterations (>= 0)")
+    assert(maxIter.doc === "maximum number of iterations (>= 0)")
     assert(maxIter.parent === uid)
     assert(maxIter.toString === s"${uid}__maxIter")
     assert(!maxIter.isValid(-1))
@@ -36,7 +36,7 @@ class ParamsSuite extends FunSuite {
 
     solver.setMaxIter(5)
     assert(solver.explainParam(maxIter) ===
-      "maxIter: max number of iterations (>= 0) (default: 10, current: 5)")
+      "maxIter: maximum number of iterations (>= 0) (default: 10, current: 5)")
 
     assert(inputCol.toString === s"${uid}__inputCol")
 
@@ -120,7 +120,7 @@ class ParamsSuite extends FunSuite {
     intercept[NoSuchElementException](solver.getInputCol)
 
     assert(solver.explainParam(maxIter) ===
-      "maxIter: max number of iterations (>= 0) (default: 10, current: 100)")
+      "maxIter: maximum number of iterations (>= 0) (default: 10, current: 100)")
     assert(solver.explainParams() ===
       Seq(inputCol, maxIter).map(solver.explainParam).mkString("\n"))