setDT should be more careful on altering its input #2683

Activity

1. jangorecki

   added

   bug

   on Mar 16, 2018
2. jangorecki

   added this to the v1.10.6This milestone has been deleted milestone on Mar 16, 2018
3. jangorecki

   changed the title [-]setDT should be more careful on altering it's input[/-] [+]setDT should be more careful on altering its input[/+] on Mar 17, 2018
4. mattdowle

   modified the milestones: v1.11.0, v1.11.2This milestone has been deleted on Apr 29, 2018
5. BenoitLondon commented on Sep 5, 2018

   

   BenoitLondon

   on Sep 5, 2018

   Last edited by DavidArenburg

   More actions

   A related bug:

   setDT even modifies the input vector if the data.table is modified later on

   see here

   a <- 1:2 / 2
   x <- 1:10 / 2
   y <- 11/2
   dt <- data.frame(a, x, y)
   setDT(dt)
   dt[ , cond := a == 1]
   dt[(cond), c("x", "y") := list(y, x)]
   x
   #[1] 0.5 5.5 1.5 5.5 2.5 5.5 3.5 5.5 4.5 5.5

   😕React with 😕1Reacted by Uwe Block
6. mattdowle

   modified the milestones: 1.12.0, 1.12.2 on Jan 11, 2019
7. jangorecki

   modified the milestones: 1.12.2, 1.12.4 on Jan 24, 2019
8. arunsrinivasan commented on Feb 16, 2019

   

   arunsrinivasan

   on Feb 16, 2019

   Member

   More actions

   @BenoitLondon your issue is slightly different.. I've answered your SO post.

   👍React with 👍1Reacted by benoit
9. jangorecki

   modified the milestones: 1.12.4, 1.13.0 on Sep 17, 2019
10. mattdowle

    modified the milestones: 1.12.7, 1.12.9 on Dec 8, 2019
11. jangorecki

    added

    High

    on Apr 2, 2020
12. mattdowle

    modified the milestones: 1.13.1, 1.13.3 on Oct 17, 2020
13. OfekShilon commented on May 9, 2021

    

    OfekShilon

    on May 9, 2021

    Contributor

    More actions

    I believe this (and some other similar bugs) could be solved by this PR: #4978
14. jangorecki

    modified the milestones: 1.14.3, 1.14.5This milestone has been deleted on Jul 19, 2022
15. jangorecki

    modified the milestones: 1.14.11This milestone has been deleted, 1.15.1 on Oct 29, 2023
16. jangorecki

    removed this from the 1.16.0 milestone on Nov 6, 2023