{"action":"closed","issue":{"url":"https://api.github.com/repos/iancze/Starfish/issues/16","labels_url":"https://api.github.com/repos/iancze/Starfish/issues/16/labels{/name}","comments_url":"https://api.github.com/repos/iancze/Starfish/issues/16/comments","events_url":"https://api.github.com/repos/iancze/Starfish/issues/16/events","html_url":"https://github.com/iancze/Starfish/issues/16","id":113732633,"number":16,"title":"Strange behavior for the spectral order with fix_c0=True in optimize_Cheb and ChebyshevSpectrum","user":{"login":"gully","id":860227,"avatar_url":"https://avatars.githubusercontent.com/u/860227?v=3","gravatar_id":"","url":"https://api.github.com/users/gully","html_url":"https://github.com/gully","followers_url":"https://api.github.com/users/gully/followers","following_url":"https://api.github.com/users/gully/following{/other_user}","gists_url":"https://api.github.com/users/gully/gists{/gist_id}","starred_url":"https://api.github.com/users/gully/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/gully/subscriptions","organizations_url":"https://api.github.com/users/gully/orgs","repos_url":"https://api.github.com/users/gully/repos","events_url":"https://api.github.com/users/gully/events{/privacy}","received_events_url":"https://api.github.com/users/gully/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":2,"created_at":"2015-10-28T02:52:41Z","updated_at":"2015-10-30T08:52:35Z","closed_at":"2015-10-30T08:52:35Z","body":"Background: Since c0 and Omega (solid angle) are degenerate, one order's c0 must be fixed.  \r\n\r\nIssue: I've been consistently getting poor fits for the Chebyshev polynomial during `star.py --optimize=Cheb` for the particular spectral order that has fix_c0=True.  I think there is something wrong with how fix_c0 is treated.  A glance over the relevant packages (listed below) shows that there is some commented-out code.  I'm not certain there's a bug here, but something is fishy.\r\n\r\nCourse of action:  refactor/spot-check: \r\n-`ChebyshevSpectrum` in *spectrum.py*\r\n-`update` in *spectrum.py*\r\n-`optimize_Cheb` in *parallel.py*"}}