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group_by reorders data.table #623

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matthieugomez opened this issue Sep 24, 2014 · 1 comment
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group_by reorders data.table #623

matthieugomez opened this issue Sep 24, 2014 · 1 comment
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@hadley
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bug an unexpected problem or unintended behavior
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0.4

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@matthieugomez
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group_by reorders data.tables

library(dplyr)
library(data.table)
DF <- data.frame(
  v1 = sample(5, N, TRUE)
)
DF %>% group_by(v1)
setDT(DF) 
DF %>% group_by(v1)
@hadley hadley added the bug an unexpected problem or unintended behavior label Sep 30, 2014
@hadley hadley added this to the 0.3.1 milestone Sep 30, 2014
@hadley hadley self-assigned this Sep 30, 2014
@hadley hadley closed this as completed in 517a43b Nov 19, 2014
@matthieugomez
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Thanks

@krlmlr krlmlr mentioned this issue Sep 9, 2015
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@hadley hadley

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