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[R-Forge #2491] rblindlist could add a column containing the names #591

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arunsrinivasan opened this issue Jun 8, 2014 · 0 comments
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[R-Forge #2491] rblindlist could add a column containing the names #591

arunsrinivasan opened this issue Jun 8, 2014 · 0 comments
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feature request Low
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v1.9.6

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Submitted by: Matt Dowle; Assigned to: Nobody; R-Forge link

With a named list L of data.table

rbindlist(L, namesname="Names")

would do apx :

rbind(L)
DT[,Names:=rep(names(L),sapply(L,nrow))]
movecol(DT,"Names",1)

with check that length(unique(names(L))) == length(L) [ i.e. !any(duplicated(names(L))) ]
@arunsrinivasan arunsrinivasan added this to the v1.9.6 milestone Sep 24, 2014
@arunsrinivasan arunsrinivasan added Low and removed Medium labels Sep 25, 2014
@arunsrinivasan arunsrinivasan mentioned this issue Oct 10, 2014
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@arunsrinivasan arunsrinivasan modified the milestones: v1.9.6, v1.9.8 Oct 10, 2014
@arunsrinivasan arunsrinivasan modified the milestones: v1.9.6, v1.9.8 Jan 25, 2015
@arunsrinivasan arunsrinivasan self-assigned this Jan 25, 2015
arunsrinivasan added a commit that referenced this issue Jan 25, 2015
@arunsrinivasan
Don't prefix with "V" on auto generating idcol, #591.
f4a06eb
arunsrinivasan added a commit that referenced this issue Apr 29, 2015
@arunsrinivasan
rbindlist idcols auto generated are of integer type, #591.
426e8e4
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