{"action":"closed","issue":{"url":"https://api.github.com/repos/msyriac/pyfisher/issues/1","repository_url":"https://api.github.com/repos/msyriac/pyfisher","labels_url":"https://api.github.com/repos/msyriac/pyfisher/issues/1/labels{/name}","comments_url":"https://api.github.com/repos/msyriac/pyfisher/issues/1/comments","events_url":"https://api.github.com/repos/msyriac/pyfisher/issues/1/events","html_url":"https://github.com/msyriac/pyfisher/issues/1","id":128621634,"number":1,"title":"Compact parametrization doesn't exactly reproduce non-compact","user":{"login":"msyriac","id":3674397,"avatar_url":"https://avatars.githubusercontent.com/u/3674397?v=3","gravatar_id":"","url":"https://api.github.com/users/msyriac","html_url":"https://github.com/msyriac","followers_url":"https://api.github.com/users/msyriac/followers","following_url":"https://api.github.com/users/msyriac/following{/other_user}","gists_url":"https://api.github.com/users/msyriac/gists{/gist_id}","starred_url":"https://api.github.com/users/msyriac/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/msyriac/subscriptions","organizations_url":"https://api.github.com/users/msyriac/orgs","repos_url":"https://api.github.com/users/msyriac/repos","events_url":"https://api.github.com/users/msyriac/events{/privacy}","received_events_url":"https://api.github.com/users/msyriac/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":2,"created_at":"2016-01-25T19:48:07Z","updated_at":"2016-02-29T22:16:26Z","closed_at":"2016-02-29T22:16:26Z","body":"I'm allowing for two ways to calculate the Fisher matrix, which under its current implementation should be identical for the case where no lensing data is added. The default is the `compact = False` version which uses `FisherForecast.CovFromVecs`. This is just an implementation of  Eq.A.4 of 1509.07471 (or more explicitly, Eq 3 of 1109.6322).  The `compact = True` option uses `FisherForecast.CovFromVecsSmall`, which is easier to extend to datasets involving cross-correlations with optical data (Eq.4 of 1402.4108). However, the numbers don't perfectly agree, so there's likely a bug somewhere."}}