Github user jkbradley commented on a diff in the pull request:
https://github.com/apache/spark/pull/7705#discussion_r35726182
--- Diff:
mllib/src/main/scala/org/apache/spark/mllib/clustering/LDAModel.scala ---
@@ -168,7 +194,22 @@ abstract class LDAModel private[clustering] extends
Saveable {
*/
@Experimental
class LocalLDAModel private[clustering] (
- private val topics: Matrix) extends LDAModel with Serializable {
+ private val topics: Matrix,
+ protected val docConcentration: Vector,
+ protected val topicConcentration: Double,
+ protected val gammaShape: Double) extends LDAModel with Serializable {
+
+ /**
+ * Backwards compatibility constructor, assumes symmetric
docConcentration=1/numTopics,
+ * topicConcentration=1, gammaShape=100. This is probably NOT what you
want (instead you should
+ * set the parameters explicitly in constructor)
+ * @deprecated Provide alpha, eta, and gammaShape in constructor.
+ */
+ @deprecated(
--- End diff --
We don't need to provide this since the constructor is a private API.
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