<div dir="ltr">I think you know how to make a wrapper. Consider something like <br><br>setDT(setnames(lapply(coltypes,function(x){ if (x=="char") return(character(0)); if (x=="numeric") return(numeric(0))}),colnames))<div class="gmail_extra"><br><div class="gmail_quote">On Thu, Jul 23, 2015 at 2:34 PM, statquant3 <span dir="ltr"><<a href="mailto:statquant@outlook.com" target="_blank">statquant@outlook.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">Doing DT <- data.table(date=Sys.Date()[0],id=character(0),value=numeric(0))<br>
is exactly what I want to do... programatically.<br>
I just want to provide column names and type of columns...<br>
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