{"action":"created","issue":{"url":"https://api.github.com/repos/pymc-devs/pymc3/issues/2137","repository_url":"https://api.github.com/repos/pymc-devs/pymc3","labels_url":"https://api.github.com/repos/pymc-devs/pymc3/issues/2137/labels{/name}","comments_url":"https://api.github.com/repos/pymc-devs/pymc3/issues/2137/comments","events_url":"https://api.github.com/repos/pymc-devs/pymc3/issues/2137/events","html_url":"https://github.com/pymc-devs/pymc3/issues/2137","id":226611629,"number":2137,"title":"pm.gp.sample_gp returns nan","user":{"login":"junpenglao","id":12952641,"avatar_url":"https://avatars1.githubusercontent.com/u/12952641?v=3","gravatar_id":"","url":"https://api.github.com/users/junpenglao","html_url":"https://github.com/junpenglao","followers_url":"https://api.github.com/users/junpenglao/followers","following_url":"https://api.github.com/users/junpenglao/following{/other_user}","gists_url":"https://api.github.com/users/junpenglao/gists{/gist_id}","starred_url":"https://api.github.com/users/junpenglao/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/junpenglao/subscriptions","organizations_url":"https://api.github.com/users/junpenglao/orgs","repos_url":"https://api.github.com/users/junpenglao/repos","events_url":"https://api.github.com/users/junpenglao/events{/privacy}","received_events_url":"https://api.github.com/users/junpenglao/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":{"login":"aseyboldt","id":1882397,"avatar_url":"https://avatars0.githubusercontent.com/u/1882397?v=3","gravatar_id":"","url":"https://api.github.com/users/aseyboldt","html_url":"https://github.com/aseyboldt","followers_url":"https://api.github.com/users/aseyboldt/followers","following_url":"https://api.github.com/users/aseyboldt/following{/other_user}","gists_url":"https://api.github.com/users/aseyboldt/gists{/gist_id}","starred_url":"https://api.github.com/users/aseyboldt/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/aseyboldt/subscriptions","organizations_url":"https://api.github.com/users/aseyboldt/orgs","repos_url":"https://api.github.com/users/aseyboldt/repos","events_url":"https://api.github.com/users/aseyboldt/events{/privacy}","received_events_url":"https://api.github.com/users/aseyboldt/received_events","type":"User","site_admin":false},"assignees":[{"login":"aseyboldt","id":1882397,"avatar_url":"https://avatars0.githubusercontent.com/u/1882397?v=3","gravatar_id":"","url":"https://api.github.com/users/aseyboldt","html_url":"https://github.com/aseyboldt","followers_url":"https://api.github.com/users/aseyboldt/followers","following_url":"https://api.github.com/users/aseyboldt/following{/other_user}","gists_url":"https://api.github.com/users/aseyboldt/gists{/gist_id}","starred_url":"https://api.github.com/users/aseyboldt/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/aseyboldt/subscriptions","organizations_url":"https://api.github.com/users/aseyboldt/orgs","repos_url":"https://api.github.com/users/aseyboldt/repos","events_url":"https://api.github.com/users/aseyboldt/events{/privacy}","received_events_url":"https://api.github.com/users/aseyboldt/received_events","type":"User","site_admin":false}],"milestone":null,"comments":13,"created_at":"2017-05-05T15:37:48Z","updated_at":"2017-06-02T20:55:01Z","closed_at":"2017-05-08T06:53:23Z","body":"@aseyboldt  Thanks for the hard work in #2028, sampling is fine now. However, the random method in both `MvNormal` and `gp` is not working too well. For example, even running the [simple `GP` notebook](https://github.com/pymc-devs/pymc3/blob/master/docs/source/notebooks/GP-introduction.ipynb), `gp.sample_gp` returns only NaNs. I think it might be a safer option to use the scipy Multivariance to generate random number, as even if the covariance is not positive-semidefinite it still return random samples but with warning."},"comment":{"url":"https://api.github.com/repos/pymc-devs/pymc3/issues/comments/305906877","html_url":"https://github.com/pymc-devs/pymc3/issues/2137#issuecomment-305906877","issue_url":"https://api.github.com/repos/pymc-devs/pymc3/issues/2137","id":305906877,"user":{"login":"aseyboldt","id":1882397,"avatar_url":"https://avatars0.githubusercontent.com/u/1882397?v=3","gravatar_id":"","url":"https://api.github.com/users/aseyboldt","html_url":"https://github.com/aseyboldt","followers_url":"https://api.github.com/users/aseyboldt/followers","following_url":"https://api.github.com/users/aseyboldt/following{/other_user}","gists_url":"https://api.github.com/users/aseyboldt/gists{/gist_id}","starred_url":"https://api.github.com/users/aseyboldt/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/aseyboldt/subscriptions","organizations_url":"https://api.github.com/users/aseyboldt/orgs","repos_url":"https://api.github.com/users/aseyboldt/repos","events_url":"https://api.github.com/users/aseyboldt/events{/privacy}","received_events_url":"https://api.github.com/users/aseyboldt/received_events","type":"User","site_admin":false},"created_at":"2017-06-02T20:55:01Z","updated_at":"2017-06-02T20:55:01Z","body":"I'll have a look tomorrow."}}
{"actor":{"display_login":"aseyboldt"}}