{"action":"opened","issue":{"url":"https://api.github.com/repos/strengejacke/ggeffects/issues/44","repository_url":"https://api.github.com/repos/strengejacke/ggeffects","labels_url":"https://api.github.com/repos/strengejacke/ggeffects/issues/44/labels{/name}","comments_url":"https://api.github.com/repos/strengejacke/ggeffects/issues/44/comments","events_url":"https://api.github.com/repos/strengejacke/ggeffects/issues/44/events","html_url":"https://github.com/strengejacke/ggeffects/issues/44","id":381583769,"node_id":"MDU6SXNzdWUzODE1ODM3Njk=","number":44,"title":"Cannot get ggeffects for glm.nb with contiunous covariate","user":{"login":"asierrl","id":8058052,"node_id":"MDQ6VXNlcjgwNTgwNTI=","avatar_url":"https://avatars3.githubusercontent.com/u/8058052?v=4","gravatar_id":"","url":"https://api.github.com/users/asierrl","html_url":"https://github.com/asierrl","followers_url":"https://api.github.com/users/asierrl/followers","following_url":"https://api.github.com/users/asierrl/following{/other_user}","gists_url":"https://api.github.com/users/asierrl/gists{/gist_id}","starred_url":"https://api.github.com/users/asierrl/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/asierrl/subscriptions","organizations_url":"https://api.github.com/users/asierrl/orgs","repos_url":"https://api.github.com/users/asierrl/repos","events_url":"https://api.github.com/users/asierrl/events{/privacy}","received_events_url":"https://api.github.com/users/asierrl/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2018-11-16T12:41:33Z","updated_at":"2018-11-16T12:41:33Z","closed_at":null,"author_association":"NONE","body":"I'm using ggeffects to get marginal effects plotted from different glmer and glm models and I've found out ggeffects gives  the following result when asking for a marginal effect of a continuous variable with glm.nb models:\r\n\r\n[1] x         predicted conf.low  conf.high\r\n<0 rows> (or 0-length row.names)\r\n\r\nFor example, I cannot get ggeffects for anything with anosc in this model: \r\nglm.nb(formula = ncone.san ~ Tratamiento * C + anosc + I(anosc^2) + \r\n    anosc:Tratamiento + I(anosc^2):Tratamiento + ivsc, data = datos, \r\n    init.theta = 1.133641349, link = log)\r\n\r\nAny hint of what's going on?\r\nBest regards, \r\nAsier\r\n"}}
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