{"action":"opened","issue":{"url":"https://api.github.com/repos/dmlc/xgboost/issues/1242","repository_url":"https://api.github.com/repos/dmlc/xgboost","labels_url":"https://api.github.com/repos/dmlc/xgboost/issues/1242/labels{/name}","comments_url":"https://api.github.com/repos/dmlc/xgboost/issues/1242/comments","events_url":"https://api.github.com/repos/dmlc/xgboost/issues/1242/events","html_url":"https://github.com/dmlc/xgboost/issues/1242","id":157857479,"number":1242,"title":"what's the point label in each iter?","user":{"login":"leoli2012","id":13852887,"avatar_url":"https://avatars.githubusercontent.com/u/13852887?v=3","gravatar_id":"","url":"https://api.github.com/users/leoli2012","html_url":"https://github.com/leoli2012","followers_url":"https://api.github.com/users/leoli2012/followers","following_url":"https://api.github.com/users/leoli2012/following{/other_user}","gists_url":"https://api.github.com/users/leoli2012/gists{/gist_id}","starred_url":"https://api.github.com/users/leoli2012/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/leoli2012/subscriptions","organizations_url":"https://api.github.com/users/leoli2012/orgs","repos_url":"https://api.github.com/users/leoli2012/repos","events_url":"https://api.github.com/users/leoli2012/events{/privacy}","received_events_url":"https://api.github.com/users/leoli2012/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2016-06-01T09:06:22Z","updated_at":"2016-06-01T09:06:22Z","closed_at":null,"body":"hi, i have read the xgboost paper, i know how to calculate the leaf score and  obj, but i don't know how to update the label in each iter when build new tree, is the same label used in all trees?"}}
{"actor":{"display_login":"leoli2012"}}