{"action":"created","issue":{"url":"https://api.github.com/repos/mne-tools/mne-python/issues/2793","labels_url":"https://api.github.com/repos/mne-tools/mne-python/issues/2793/labels{/name}","comments_url":"https://api.github.com/repos/mne-tools/mne-python/issues/2793/comments","events_url":"https://api.github.com/repos/mne-tools/mne-python/issues/2793/events","html_url":"https://github.com/mne-tools/mne-python/issues/2793","id":126909292,"number":2793,"title":"Problem in scaling of ICA corrected data","user":{"login":"hsonntag","id":135438,"avatar_url":"https://avatars.githubusercontent.com/u/135438?v=3","gravatar_id":"","url":"https://api.github.com/users/hsonntag","html_url":"https://github.com/hsonntag","followers_url":"https://api.github.com/users/hsonntag/followers","following_url":"https://api.github.com/users/hsonntag/following{/other_user}","gists_url":"https://api.github.com/users/hsonntag/gists{/gist_id}","starred_url":"https://api.github.com/users/hsonntag/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/hsonntag/subscriptions","organizations_url":"https://api.github.com/users/hsonntag/orgs","repos_url":"https://api.github.com/users/hsonntag/repos","events_url":"https://api.github.com/users/hsonntag/events{/privacy}","received_events_url":"https://api.github.com/users/hsonntag/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":2,"created_at":"2016-01-15T16:42:29Z","updated_at":"2016-01-18T10:39:04Z","closed_at":null,"body":"We observed a scaling of the MEG channels by a huge factor after applying ICA to raw data.\r\nI prepared a small script (very simple only to show the problem) to demonstrate this effect for one of our measurement files (neuromag vectorview) where the scaling factor is about 10E10.\r\nI would like to provide the dependency files on our bigmail server, would that be ok?\r\nIn the script, the first ICA component is excluded but the effect also shows up when nothing is excluded.\r\nMaybe you know about this issue already when you see the code, otherwise I will upload the dependencies.\r\n \r\n[test_ica.txt](https://github.com/mne-tools/mne-python/files/92182/test_ica.txt)\r\n"},"comment":{"url":"https://api.github.com/repos/mne-tools/mne-python/issues/comments/172493677","html_url":"https://github.com/mne-tools/mne-python/issues/2793#issuecomment-172493677","issue_url":"https://api.github.com/repos/mne-tools/mne-python/issues/2793","id":172493677,"user":{"login":"hsonntag","id":135438,"avatar_url":"https://avatars.githubusercontent.com/u/135438?v=3","gravatar_id":"","url":"https://api.github.com/users/hsonntag","html_url":"https://github.com/hsonntag","followers_url":"https://api.github.com/users/hsonntag/followers","following_url":"https://api.github.com/users/hsonntag/following{/other_user}","gists_url":"https://api.github.com/users/hsonntag/gists{/gist_id}","starred_url":"https://api.github.com/users/hsonntag/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/hsonntag/subscriptions","organizations_url":"https://api.github.com/users/hsonntag/orgs","repos_url":"https://api.github.com/users/hsonntag/repos","events_url":"https://api.github.com/users/hsonntag/events{/privacy}","received_events_url":"https://api.github.com/users/hsonntag/received_events","type":"User","site_admin":false},"created_at":"2016-01-18T10:39:04Z","updated_at":"2016-01-18T10:39:04Z","body":"Thank you Denis,\r\n\r\nI uploaded the file eg28a/eg28a1_ss.fif in:\r\nhttps://bigmail.cbs.mpg.de/i/4bba73d90eea2183d452bcab2e29c95f.fif\r\n\r\nand the file eg28a/eg28ab_ss.fif in:\r\nhttps://bigmail.cbs.mpg.de/i/f4658234ba3e1b7ba2acbaf6046dbe2e.fif\r\n\r\nThe measurement file is rather big, I am sorry for that, I just wanted to provide the original data where the problem occurred."}}