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Reindexing grouped data frames only update class if not grouped already #3438

merged 3 commits into from Mar 20, 2018


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@krlmlr krlmlr commented Mar 16, 2018

to retain existing classes. Closes #3310.

Does the comment make sense?

@krlmlr krlmlr requested a review from romainfrancois Mar 16, 2018
to retain existing classes
@krlmlr krlmlr force-pushed the b-#3310-reindex-class branch from 08d4133 to 3d99e83 Mar 18, 2018
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@romainfrancois romainfrancois left a comment

I'm fine with the comment.

Isn't r_match too big a 🔨 ?

btw, there is this function in tbl_cpp.h

template <typename Data>
inline Rcpp::CharacterVector classes_grouped() {
  return Rcpp::CharacterVector::create("grouped_df", "tbl_df", "tbl", "data.frame");

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@krlmlr krlmlr commented Mar 19, 2018

Thanks. Yeah, should be Rf_inherits(). Will update, and also use the helper.

@krlmlr krlmlr merged commit 84fdff5 into tidyverse:master Mar 20, 2018
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@krlmlr krlmlr deleted the b-#3310-reindex-class branch Mar 20, 2018
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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.

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2 participants