{"action":"opened","issue":{"url":"https://api.github.com/repos/pillowlab/BinaryPursuitSpikeSorting/issues/1","labels_url":"https://api.github.com/repos/pillowlab/BinaryPursuitSpikeSorting/issues/1/labels{/name}","comments_url":"https://api.github.com/repos/pillowlab/BinaryPursuitSpikeSorting/issues/1/comments","events_url":"https://api.github.com/repos/pillowlab/BinaryPursuitSpikeSorting/issues/1/events","html_url":"https://github.com/pillowlab/BinaryPursuitSpikeSorting/issues/1","id":55004490,"number":1,"title":"low spike counts lead to per chunk and bad conditioned regression problem.","user":{"login":"pmeier82","id":300202,"avatar_url":"https://avatars.githubusercontent.com/u/300202?v=3","gravatar_id":"","url":"https://api.github.com/users/pmeier82","html_url":"https://github.com/pmeier82","followers_url":"https://api.github.com/users/pmeier82/followers","following_url":"https://api.github.com/users/pmeier82/following{/other_user}","gists_url":"https://api.github.com/users/pmeier82/gists{/gist_id}","starred_url":"https://api.github.com/users/pmeier82/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/pmeier82/subscriptions","organizations_url":"https://api.github.com/users/pmeier82/orgs","repos_url":"https://api.github.com/users/pmeier82/repos","events_url":"https://api.github.com/users/pmeier82/events{/privacy}","received_events_url":"https://api.github.com/users/pmeier82/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-01-21T11:00:04Z","updated_at":"2015-01-21T11:00:04Z","closed_at":null,"body":"Concerning the template estimation, if there happen to be very few to zero spikes for one of the units, the regression problem will be ill-conditioned or even singular. This seems to be a general problem, do you have any pointers how to treat the issue?\r\n\r\nThanks,\r\nPhil"}}