[datatable-help] rbind() vs. rbindlist() behavior/warning

[Eduard Antonyan]

Fyi, it's not well documented, but setting use.names=FALSE in rbind would
replicate rbindlist behavior.

I think it's a reasonable FR - if/when all of rbind code goes into C, it
would be trivial to add.
 On Nov 9, 2013 10:51 AM, "G See" <gsee000 at gmail.com> wrote:

> Hi,
>
> Please note the inconsistency between the behavior of rbind() and
> rbindlist() below.
>
> m1 <- as.data.table(mtcars)
> m2 <- copy(m1)
> rbind(m1[, .SD[1], by=cyl], m2) # Gives warning and binds by name
> rbindlist(list(m1[, .SD[1], by=cyl], m2)) # no warning, and does NOT
> bind by name
>
> What do you think about making them have the same behavior and/or
> warning?  Personally, I prefer the behavior of rbind(), and would
> prefer to see a warning if column names are ignored like they are with
> rbindlist().
>
> Thanks,
> Garrett
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