{"action":"opened","issue":{"url":"https://api.github.com/repos/mlr-org/mlr-tutorial/issues/18","labels_url":"https://api.github.com/repos/mlr-org/mlr-tutorial/issues/18/labels{/name}","comments_url":"https://api.github.com/repos/mlr-org/mlr-tutorial/issues/18/comments","events_url":"https://api.github.com/repos/mlr-org/mlr-tutorial/issues/18/events","html_url":"https://github.com/mlr-org/mlr-tutorial/issues/18","id":101180788,"number":18,"title":"ROC section: bad example","user":{"login":"berndbischl","id":1225974,"avatar_url":"https://avatars.githubusercontent.com/u/1225974?v=3","gravatar_id":"","url":"https://api.github.com/users/berndbischl","html_url":"https://github.com/berndbischl","followers_url":"https://api.github.com/users/berndbischl/followers","following_url":"https://api.github.com/users/berndbischl/following{/other_user}","gists_url":"https://api.github.com/users/berndbischl/gists{/gist_id}","starred_url":"https://api.github.com/users/berndbischl/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/berndbischl/subscriptions","organizations_url":"https://api.github.com/users/berndbischl/orgs","repos_url":"https://api.github.com/users/berndbischl/repos","events_url":"https://api.github.com/users/berndbischl/events{/privacy}","received_events_url":"https://api.github.com/users/berndbischl/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-08-15T14:21:09Z","updated_at":"2015-08-15T14:21:09Z","closed_at":null,"body":"In the ROC adv section we compare some learners on sonar.task with a visual ROC curve.\r\nBut we train and test and the whole task, so we compare on the training set.\r\n\r\nThis is not common and a bad example. we SHOULD REALLY use at least a proper test set.\r\n"}}