Github user srowen commented on a diff in the pull request:
https://github.com/apache/spark/pull/13656#discussion_r66931976
--- Diff:
mllib/src/main/scala/org/apache/spark/mllib/fpm/AssociationRules.scala ---
@@ -120,6 +120,13 @@ object AssociationRules {
@Since("1.5.0")
def confidence: Double = freqUnion.toDouble / freqAntecedent
+ /**
+ * Returns the support of the rule. Current implementation would
return the number of
+ * co-occurrence of antecedent and consequent.
+ */
+ @Since("2.1.0")
+ def support: Double = freqUnion.toDouble
+
--- End diff --
Yes, it's not possible to implement in that case. There's an argument for
just adding the parameter and removing the old constructor for 2.0 in order to
support this without the convolutions. I'd love to get a thumbs up from
@jkbradley or @mengxr though.
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
