{"action":"closed","issue":{"url":"https://api.github.com/repos/percolator/percolator/issues/145","repository_url":"https://api.github.com/repos/percolator/percolator","labels_url":"https://api.github.com/repos/percolator/percolator/issues/145/labels{/name}","comments_url":"https://api.github.com/repos/percolator/percolator/issues/145/comments","events_url":"https://api.github.com/repos/percolator/percolator/issues/145/events","html_url":"https://github.com/percolator/percolator/issues/145","id":148587912,"number":145,"title":"Error message when no decoys provided","user":{"login":"percolator","id":95488,"avatar_url":"https://avatars.githubusercontent.com/u/95488?v=3","gravatar_id":"","url":"https://api.github.com/users/percolator","html_url":"https://github.com/percolator","followers_url":"https://api.github.com/users/percolator/followers","following_url":"https://api.github.com/users/percolator/following{/other_user}","gists_url":"https://api.github.com/users/percolator/gists{/gist_id}","starred_url":"https://api.github.com/users/percolator/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/percolator/subscriptions","organizations_url":"https://api.github.com/users/percolator/orgs","repos_url":"https://api.github.com/users/percolator/repos","events_url":"https://api.github.com/users/percolator/events{/privacy}","received_events_url":"https://api.github.com/users/percolator/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/percolator/percolator/labels/TODO","name":"TODO","color":"8ad989"}],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2016-04-15T08:04:32Z","updated_at":"2016-04-18T13:28:28Z","closed_at":"2016-04-18T13:28:28Z","body":"When provided with target but no decoy PSMs, percolator halts after training  with a cryptic error message: \"Exception caught: Error : the input data has too good separation between target and decoy PSMs.\"\r\n \r\nWSN pointed out that: \"I think you should modify Percolator to terminate with an error message (\"No decoys provided\") prior to training. That would be a lot more understandable to the end user than telling them you got perfect separation.\"\r\n"}}