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Adding Column of NA to a Grouped Table Crashes R #1645

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DarioS opened this issue Jan 29, 2016 · 0 comments
Closed

Adding Column of NA to a Grouped Table Crashes R #1645

DarioS opened this issue Jan 29, 2016 · 0 comments
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@DarioS
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@DarioS DarioS commented Jan 29, 2016

The example is :

library(dplyr)
dataset <- data_frame(A = 1:10, B = 10:1, group = factor(sample(LETTERS[25:26], 10, TRUE)))
dataset %>% group_by(group) %>% mutate(prediction = factor(NA))

It results in :

*** caught segfault ***
address 0xfffffffffffffffc, cause 'memory not mapped'

If the table is not grouped, then there is no R crash.

The R session is :

R version 3.2.3 (2015-12-10)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Ubuntu 15.10

other attached packages:
[1] dplyr_0.4.3.9000
@romainfrancois romainfrancois self-assigned this Feb 1, 2016
@lock lock bot locked as resolved and limited conversation to collaborators Jun 9, 2018
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