{"action":"created","issue":{"url":"https://api.github.com/repos/apache/spark/issues/14449","repository_url":"https://api.github.com/repos/apache/spark","labels_url":"https://api.github.com/repos/apache/spark/issues/14449/labels{/name}","comments_url":"https://api.github.com/repos/apache/spark/issues/14449/comments","events_url":"https://api.github.com/repos/apache/spark/issues/14449/events","html_url":"https://github.com/apache/spark/pull/14449","id":168797667,"number":14449,"title":"[SPARK-16843][MLLIB] add the percentage ChiSquareSelector feature","user":{"login":"mpjlu","id":13826327,"avatar_url":"https://avatars.githubusercontent.com/u/13826327?v=3","gravatar_id":"","url":"https://api.github.com/users/mpjlu","html_url":"https://github.com/mpjlu","followers_url":"https://api.github.com/users/mpjlu/followers","following_url":"https://api.github.com/users/mpjlu/following{/other_user}","gists_url":"https://api.github.com/users/mpjlu/gists{/gist_id}","starred_url":"https://api.github.com/users/mpjlu/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/mpjlu/subscriptions","organizations_url":"https://api.github.com/users/mpjlu/orgs","repos_url":"https://api.github.com/users/mpjlu/repos","events_url":"https://api.github.com/users/mpjlu/events{/privacy}","received_events_url":"https://api.github.com/users/mpjlu/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":7,"created_at":"2016-08-02T04:37:12Z","updated_at":"2016-08-05T10:15:00Z","closed_at":null,"pull_request":{"url":"https://api.github.com/repos/apache/spark/pulls/14449","html_url":"https://github.com/apache/spark/pull/14449","diff_url":"https://github.com/apache/spark/pull/14449.diff","patch_url":"https://github.com/apache/spark/pull/14449.patch"},"body":"## What changes were proposed in this pull request?\r\n\r\nNow, there is only numTopFeatures Param in ChiSquareSelector. In practice, it is convenience to use the percentage as the Param.\r\n\r\nWe add the percentage Param for ChiSquareSelector in this PR.\r\n\r\n\r\n## How was this patch tested?\r\n\r\nadd scala ut\r\n\r\n\r\n"},"comment":{"url":"https://api.github.com/repos/apache/spark/issues/comments/237815057","html_url":"https://github.com/apache/spark/pull/14449#issuecomment-237815057","issue_url":"https://api.github.com/repos/apache/spark/issues/14449","id":237815057,"user":{"login":"MLnick","id":1036807,"avatar_url":"https://avatars.githubusercontent.com/u/1036807?v=3","gravatar_id":"","url":"https://api.github.com/users/MLnick","html_url":"https://github.com/MLnick","followers_url":"https://api.github.com/users/MLnick/followers","following_url":"https://api.github.com/users/MLnick/following{/other_user}","gists_url":"https://api.github.com/users/MLnick/gists{/gist_id}","starred_url":"https://api.github.com/users/MLnick/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/MLnick/subscriptions","organizations_url":"https://api.github.com/users/MLnick/orgs","repos_url":"https://api.github.com/users/MLnick/repos","events_url":"https://api.github.com/users/MLnick/events{/privacy}","received_events_url":"https://api.github.com/users/MLnick/received_events","type":"User","site_admin":false},"created_at":"2016-08-05T10:15:00Z","updated_at":"2016-08-05T10:15:00Z","body":"As for other feature selection methods, feel free to create a JIRA to discuss. Some work has been done outside of Spark in packages - e.g. https://github.com/sramirez/spark-infotheoretic-feature-selection. Generally I think this is a good place for that kind of work to start - I don't think it necessarily must be in Spark itself. If usage and performance is high, it can always be considered for inclusion later on."}}
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