{"action":"created","issue":{"url":"https://api.github.com/repos/yihui/knitr/issues/1324","repository_url":"https://api.github.com/repos/yihui/knitr","labels_url":"https://api.github.com/repos/yihui/knitr/issues/1324/labels{/name}","comments_url":"https://api.github.com/repos/yihui/knitr/issues/1324/comments","events_url":"https://api.github.com/repos/yihui/knitr/issues/1324/events","html_url":"https://github.com/yihui/knitr/issues/1324","id":191657866,"number":1324,"title":"F/T in chunk option can produce error `object of type 'symbol' is not subsettable`. ","user":{"login":"rubenarslan","id":831109,"avatar_url":"https://avatars.githubusercontent.com/u/831109?v=3","gravatar_id":"","url":"https://api.github.com/users/rubenarslan","html_url":"https://github.com/rubenarslan","followers_url":"https://api.github.com/users/rubenarslan/followers","following_url":"https://api.github.com/users/rubenarslan/following{/other_user}","gists_url":"https://api.github.com/users/rubenarslan/gists{/gist_id}","starred_url":"https://api.github.com/users/rubenarslan/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/rubenarslan/subscriptions","organizations_url":"https://api.github.com/users/rubenarslan/orgs","repos_url":"https://api.github.com/users/rubenarslan/repos","events_url":"https://api.github.com/users/rubenarslan/events{/privacy}","received_events_url":"https://api.github.com/users/rubenarslan/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"assignees":[],"milestone":{"url":"https://api.github.com/repos/yihui/knitr/milestones/30","html_url":"https://github.com/yihui/knitr/milestone/30","labels_url":"https://api.github.com/repos/yihui/knitr/milestones/30/labels","id":2137543,"number":30,"title":"v1.16","description":"","creator":{"login":"yihui","id":163582,"avatar_url":"https://avatars.githubusercontent.com/u/163582?v=3","gravatar_id":"","url":"https://api.github.com/users/yihui","html_url":"https://github.com/yihui","followers_url":"https://api.github.com/users/yihui/followers","following_url":"https://api.github.com/users/yihui/following{/other_user}","gists_url":"https://api.github.com/users/yihui/gists{/gist_id}","starred_url":"https://api.github.com/users/yihui/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/yihui/subscriptions","organizations_url":"https://api.github.com/users/yihui/orgs","repos_url":"https://api.github.com/users/yihui/repos","events_url":"https://api.github.com/users/yihui/events{/privacy}","received_events_url":"https://api.github.com/users/yihui/received_events","type":"User","site_admin":false},"open_issues":0,"closed_issues":7,"state":"open","created_at":"2016-11-15T20:02:04Z","updated_at":"2016-12-09T16:05:02Z","due_on":null,"closed_at":null},"comments":5,"created_at":"2016-11-25T09:26:04Z","updated_at":"2016-12-12T08:46:57Z","closed_at":"2016-12-06T05:11:49Z","body":"Calling rmarkdown::render on\r\n\r\n    ```{r warning=F}\r\n    ```\r\n\r\noccasionally produces the error `object of type 'symbol' is not subsettable`. \r\nThis never happened in a clean session, although knitr does show\r\n\r\n```\r\nlabel: unnamed-chunk-20 (with options) \r\nList of 1\r\n $ warning: symbol F\r\n```\r\n\r\nin a clean session too. Unfortunately I'm not able to reproduce the conditions under which this subsetting error occurs and I'm not even clear what \"symbol\" means in this context (it's not the class() or typeof() of F). \r\nChanging all my chunk options to FALSE/TRUE fixes it when the problem occurs, but I'm fairly sure I haven't overwritten F anywhere.\r\n\r\nI'm sorry for posting a non-reproducible example, but I thought it might be helpful if others who encounter this message find this via Google, so they know how to fix it. If I manage to reproduce it, I'll post back here."},"comment":{"url":"https://api.github.com/repos/yihui/knitr/issues/comments/266372792","html_url":"https://github.com/yihui/knitr/issues/1324#issuecomment-266372792","issue_url":"https://api.github.com/repos/yihui/knitr/issues/1324","id":266372792,"user":{"login":"rubenarslan","id":831109,"avatar_url":"https://avatars.githubusercontent.com/u/831109?v=3","gravatar_id":"","url":"https://api.github.com/users/rubenarslan","html_url":"https://github.com/rubenarslan","followers_url":"https://api.github.com/users/rubenarslan/followers","following_url":"https://api.github.com/users/rubenarslan/following{/other_user}","gists_url":"https://api.github.com/users/rubenarslan/gists{/gist_id}","starred_url":"https://api.github.com/users/rubenarslan/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/rubenarslan/subscriptions","organizations_url":"https://api.github.com/users/rubenarslan/orgs","repos_url":"https://api.github.com/users/rubenarslan/repos","events_url":"https://api.github.com/users/rubenarslan/events{/privacy}","received_events_url":"https://api.github.com/users/rubenarslan/received_events","type":"User","site_admin":false},"created_at":"2016-12-12T08:46:57Z","updated_at":"2016-12-12T08:46:57Z","body":"Yeah, it's no strain to switch and I know F is technically a variable. It just freaks me out, because I don't get why it happens."}}
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