tag:blogger.com,1999:blog-10448119.post5963735565455067555..comments2024-03-23T06:42:53.608-04:00Comments on Hogg's Research: what's in an astronomical catalog?Hogghttp://www.blogger.com/profile/18398397408280534592noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-10448119.post-49178586555691725572017-03-20T15:03:45.597-04:002017-03-20T15:03:45.597-04:00The fact that one always has prior beliefs does no...The fact that one always has prior beliefs does not mean that one has to report the posterior pdf as output. I am sorry if it is true that TGAS is reporting posterior rather than likelihood information! I think with the setup in Michalik's paper, you could report either.Hogghttps://www.blogger.com/profile/18398397408280534592noreply@blogger.comtag:blogger.com,1999:blog-10448119.post-59912270811055670112017-03-20T14:10:58.260-04:002017-03-20T14:10:58.260-04:00Just to be pedantic... I also recall DWH saying &q...Just to be pedantic... I also recall DWH saying "there is always a prior. Sometimes hard to write down.".<br /><br />More seriously, TGAS gives posterior values using even inconsistent prior functions. Gaia DR2 will make those self-consistent. Do you mean in this context prior = things we'd never want to change?Morganhttps://www.blogger.com/profile/18380970110165588711noreply@blogger.com