[datatable-help] create empty data.table

[Frank Erickson]

I think you know how to make a wrapper. Consider something like

setDT(setnames(lapply(coltypes,function(x){ if (x=="char")
return(character(0)); if (x=="numeric") return(numeric(0))}),colnames))

On Thu, Jul 23, 2015 at 2:34 PM, statquant3 <statquant at outlook.com> wrote:

> Doing DT <- data.table(date=Sys.Date()[0],id=character(0),value=numeric(0))
> is exactly what I want to do... programatically.
> I just want to provide column names and type of columns...
>
>
>
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