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Inconsistent behaviour of group_by/summarise_at in version 0.7.5 #3613

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privefl opened this issue May 29, 2018 · 2 comments
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Inconsistent behaviour of group_by/summarise_at in version 0.7.5 #3613

privefl opened this issue May 29, 2018 · 2 comments
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@privefl
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@privefl privefl commented May 29, 2018

In new version (0.7.5),

iris %>%
  group_by(Species) %>%
  summarise_at(-1, mean)

Error in summarise_impl(.data, dots) :
Column Species can't be modified because it's a grouping variable

I'm pretty sure that the grouping variable was automatically excluded in previous versions.

Is this a bug or a feature? (in order for me to change my code only if necessary)

@romainfrancois
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@romainfrancois romainfrancois commented May 29, 2018

We are currently thinking about scoped verbs as a whole. This feels like a 🐛 .

In the meantime, you can also exclude Species e.g. :

> iris %>%
+   group_by(Species) %>%
+   summarise_at(vars(-1, -Species), mean)
# A tibble: 3 x 4
  Species    Sepal.Width Petal.Length Petal.Width
  <fct>            <dbl>        <dbl>       <dbl>
1 setosa            3.43         1.46       0.246
2 versicolor        2.77         4.26       1.33 
3 virginica         2.97         5.55       2.03 

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romainfrancois added a commit that referenced this issue May 30, 2018
`summarise_at()` excludes grouping variables. closes #3613
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@lock lock bot commented Nov 26, 2018

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/

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