[datatable-help] Create empty data.table

[Juan Manuel Truppia]

There is nothing already written that I'm aware of, but you can create an
empty dt easily by edt = data.table (a = numeric(0), b = character(0)),
that is, by providing arguments of 0 length as column.
Writing a function that wraps that isn't difficult.

On Thu, Jul 23, 2015, 07:00  <
datatable-help-request at lists.r-forge.r-project.org> wrote:

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>    1. Any date for 1.9.6 push to CRAN? (Damian Betebenner)
>    2. create empty data.table (statquant3)
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> ----------------------------------------------------------------------
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> Message: 1
> Date: Wed, 22 Jul 2015 10:10:31 +0000
> From: Damian Betebenner <DBetebenner at nciea.org>
> To: "datatable-help at lists.r-forge.r-project.org"
>         <datatable-help at lists.r-forge.r-project.org>
> Subject: [datatable-help] Any date for 1.9.6 push to CRAN?
> Message-ID: <FC68AD47-F30E-4FC4-B3D6-90321CB30D4F at nciea.org>
> Content-Type: text/plain; charset="us-ascii"
>
> Hi all,
>
> It was mentioned recently that 1.9.6 would be pushed to CRAN soon. Any
> rough dates when that might occur?
>
> Alway appreciative for the great work!
>
> Damian
>
> ------------------------------
>
> Message: 2
> Date: Thu, 23 Jul 2015 02:51:14 -0700 (PDT)
> From: statquant3 <statquant at outlook.com>
> To: datatable-help at lists.r-forge.r-project.org
> Subject: [datatable-help] create empty data.table
> Message-ID: <1437645074911-4710237.post at n4.nabble.com>
> Content-Type: text/plain; charset=us-ascii
>
> I wanted to create a function that creates an empty data.table with
> specified
> column types.
> emptyDT <- function(colNames,colTypes){...}
> I would call
> emptyDT(c('date','id','value'),c('Date','Character','Numeric'))
>
> Is there something available for this already ?
>
>
>
>
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