{"action":"created","issue":{"url":"https://api.github.com/repos/apache/spark/issues/9736","labels_url":"https://api.github.com/repos/apache/spark/issues/9736/labels{/name}","comments_url":"https://api.github.com/repos/apache/spark/issues/9736/comments","events_url":"https://api.github.com/repos/apache/spark/issues/9736/events","html_url":"https://github.com/apache/spark/pull/9736","id":117122702,"number":9736,"title":"[SPARK-11530] [MLLIB] Return eigenvalues with PCA model","user":{"login":"srowen","id":822522,"avatar_url":"https://avatars.githubusercontent.com/u/822522?v=3","gravatar_id":"","url":"https://api.github.com/users/srowen","html_url":"https://github.com/srowen","followers_url":"https://api.github.com/users/srowen/followers","following_url":"https://api.github.com/users/srowen/following{/other_user}","gists_url":"https://api.github.com/users/srowen/gists{/gist_id}","starred_url":"https://api.github.com/users/srowen/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/srowen/subscriptions","organizations_url":"https://api.github.com/users/srowen/orgs","repos_url":"https://api.github.com/users/srowen/repos","events_url":"https://api.github.com/users/srowen/events{/privacy}","received_events_url":"https://api.github.com/users/srowen/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":18,"created_at":"2015-11-16T13:26:42Z","updated_at":"2015-12-16T07:33:19Z","closed_at":"2015-12-10T14:06:06Z","pull_request":{"url":"https://api.github.com/repos/apache/spark/pulls/9736","html_url":"https://github.com/apache/spark/pull/9736","diff_url":"https://github.com/apache/spark/pull/9736.diff","patch_url":"https://github.com/apache/spark/pull/9736.patch"},"body":"Add `computePrincipalComponentsAndVariance` to also compute PCA's explained variance.\r\n\r\nCC @mengxr "},"comment":{"url":"https://api.github.com/repos/apache/spark/issues/comments/165022881","html_url":"https://github.com/apache/spark/pull/9736#issuecomment-165022881","issue_url":"https://api.github.com/repos/apache/spark/issues/9736","id":165022881,"user":{"login":"srowen","id":822522,"avatar_url":"https://avatars.githubusercontent.com/u/822522?v=3","gravatar_id":"","url":"https://api.github.com/users/srowen","html_url":"https://github.com/srowen","followers_url":"https://api.github.com/users/srowen/followers","following_url":"https://api.github.com/users/srowen/following{/other_user}","gists_url":"https://api.github.com/users/srowen/gists{/gist_id}","starred_url":"https://api.github.com/users/srowen/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/srowen/subscriptions","organizations_url":"https://api.github.com/users/srowen/orgs","repos_url":"https://api.github.com/users/srowen/repos","events_url":"https://api.github.com/users/srowen/events{/privacy}","received_events_url":"https://api.github.com/users/srowen/received_events","type":"User","site_admin":false},"created_at":"2015-12-16T07:33:19Z","updated_at":"2015-12-16T07:33:19Z","body":"@jkbradley ah, even if it's an experimental API? OK, seems simple enough. It's no problem to ignore the extra new column in old versions. If the new column isn't present, it's a little funny to figure out what the explained variance should be. Probably empty or null is the best that can be done -- or is it best to fail anyway?"}}