Github user wangmiao1981 commented on a diff in the pull request:
https://github.com/apache/spark/pull/12882#discussion_r62078845
--- Diff:
mllib/src/main/scala/org/apache/spark/mllib/evaluation/MulticlassMetrics.scala
---
@@ -151,6 +151,14 @@ class MulticlassMetrics @Since("1.1.0")
(predictionAndLabels: RDD[(Double, Doubl
lazy val recall: Double = precision
/**
+ * Returns accuracy
+ * (equals to precision for multicalss classifier
+ * because it is tp/labelCount)
+ */
+ @Since("2.0.0")
+ lazy val accuracy: Double = precision
--- End diff --
@srowen Thanks for your review! I think it makes a lot sense of deprecating
"precision" with "accuracy" as I got confused when I tried to add accuracy
yesterday. I will make the changes.
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