{"action":"created","issue":{"url":"https://api.github.com/repos/tidyverse/dplyr/issues/3479","repository_url":"https://api.github.com/repos/tidyverse/dplyr","labels_url":"https://api.github.com/repos/tidyverse/dplyr/issues/3479/labels{/name}","comments_url":"https://api.github.com/repos/tidyverse/dplyr/issues/3479/comments","events_url":"https://api.github.com/repos/tidyverse/dplyr/issues/3479/events","html_url":"https://github.com/tidyverse/dplyr/issues/3479","id":311765087,"node_id":"MDU6SXNzdWUzMTE3NjUwODc=","number":3479,"title":"Messages after transmute_all() et al.","user":{"login":"krlmlr","id":1741643,"node_id":"MDQ6VXNlcjE3NDE2NDM=","avatar_url":"https://avatars0.githubusercontent.com/u/1741643?v=4","gravatar_id":"","url":"https://api.github.com/users/krlmlr","html_url":"https://github.com/krlmlr","followers_url":"https://api.github.com/users/krlmlr/followers","following_url":"https://api.github.com/users/krlmlr/following{/other_user}","gists_url":"https://api.github.com/users/krlmlr/gists{/gist_id}","starred_url":"https://api.github.com/users/krlmlr/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/krlmlr/subscriptions","organizations_url":"https://api.github.com/users/krlmlr/orgs","repos_url":"https://api.github.com/users/krlmlr/repos","events_url":"https://api.github.com/users/krlmlr/events{/privacy}","received_events_url":"https://api.github.com/users/krlmlr/received_events","type":"User","site_admin":false},"labels":[{"id":276202384,"node_id":"MDU6TGFiZWwyNzYyMDIzODQ=","url":"https://api.github.com/repos/tidyverse/dplyr/labels/data%20frame","name":"data frame","color":"eeeeee","default":false},{"id":17708200,"node_id":"MDU6TGFiZWwxNzcwODIwMA==","url":"https://api.github.com/repos/tidyverse/dplyr/labels/feature","name":"feature","color":"009800","default":false}],"state":"closed","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":2,"created_at":"2018-04-05T20:53:07Z","updated_at":"2018-10-11T20:47:42Z","closed_at":"2018-04-14T20:06:23Z","author_association":"MEMBER","body":"`transmute()` should give a message if it adds a grouping variable, just like `select()`. No message after #3409, a message was given in 0.7.4:\r\n\r\n``` r\r\nlibrary(tidyverse)\r\ntibble(a = 1:2, b = 1) %>% \r\n  group_by(b) %>% \r\n  transmute(a)\r\n#> # A tibble: 2 x 2\r\n#> # Groups:   b [1]\r\n#>       b     a\r\n#>   <dbl> <int>\r\n#> 1    1.     1\r\n#> 2    1.     2\r\n```\r\n\r\n`transmute_xxx()` should give a message if they do not change a grouping variable that would otherwise fit the criteria. This is new behavior.\r\n\r\n``` r\r\nlibrary(tidyverse)\r\ntibble(a = 1:2, b = 1) %>% \r\n  group_by(b) %>% \r\n  transmute_all(funs(`-`))\r\n#> # A tibble: 2 x 2\r\n#> # Groups:   b [1]\r\n#>       b     a\r\n#>   <dbl> <int>\r\n#> 1    1.    -1\r\n#> 2    1.    -2\r\n```\r\n\r\n> Created on 2018-04-05 by the [reprex package](http://reprex.tidyverse.org) (v0.2.0).\r\n\r\nhttps://github.com/tidyverse/dplyr/pull/3409#discussion_r179595400."},"comment":{"url":"https://api.github.com/repos/tidyverse/dplyr/issues/comments/429112828","html_url":"https://github.com/tidyverse/dplyr/issues/3479#issuecomment-429112828","issue_url":"https://api.github.com/repos/tidyverse/dplyr/issues/3479","id":429112828,"node_id":"MDEyOklzc3VlQ29tbWVudDQyOTExMjgyOA==","user":{"login":"lock[bot]","id":33595554,"node_id":"MDM6Qm90MzM1OTU1NTQ=","avatar_url":"https://avatars1.githubusercontent.com/in/6672?v=4","gravatar_id":"","url":"https://api.github.com/users/lock%5Bbot%5D","html_url":"https://github.com/apps/lock","followers_url":"https://api.github.com/users/lock%5Bbot%5D/followers","following_url":"https://api.github.com/users/lock%5Bbot%5D/following{/other_user}","gists_url":"https://api.github.com/users/lock%5Bbot%5D/gists{/gist_id}","starred_url":"https://api.github.com/users/lock%5Bbot%5D/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/lock%5Bbot%5D/subscriptions","organizations_url":"https://api.github.com/users/lock%5Bbot%5D/orgs","repos_url":"https://api.github.com/users/lock%5Bbot%5D/repos","events_url":"https://api.github.com/users/lock%5Bbot%5D/events{/privacy}","received_events_url":"https://api.github.com/users/lock%5Bbot%5D/received_events","type":"Bot","site_admin":false},"created_at":"2018-10-11T20:47:42Z","updated_at":"2018-10-11T20:47:42Z","author_association":"NONE","body":"This old issue has been automatically locked. If you believe you have found a related problem, please file a new issue (with reprex) and link to this issue. <https://reprex.tidyverse.org/>\n"}}
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