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Yanbo Liang commented on SPARK-17471: ------------------------------------- [~sethah] I'm sorry that I have some emergent affairs to deal with in these days, so please feel free to take over this task. Thanks! > Add compressed method for Matrix class > -------------------------------------- > > Key: SPARK-17471 > URL: https://issues.apache.org/jira/browse/SPARK-17471 > Project: Spark > Issue Type: New Feature > Components: ML > Reporter: Seth Hendrickson > > Vectors in Spark have a {{compressed}} method which selects either sparse or > dense representation by minimizing storage requirements. Matrices should also > have this method, which is now explicitly needed in {{LogisticRegression}} > since we have implemented multiclass regression. > The compressed method should also give the option to store row major or > column major, and if nothing is specified should select the lower storage > representation (for sparse). -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org