[datatable-help] Avoiding print when using := ?

[Allan Engelhardt]

Ooops, I guess this is FAQ 2.22. But what is the preferred idiom for 
those of us who want to avoid the print?

Allan

On 13/09/12 22:16, Allan Engelhardt wrote:
> Is there any way of tuning off the printing when using the := 
> assignment? I have taken to writing code like
>
> library("data.table")
> DT <- data.table(idx = 1:10, key = "idx")
> for (i in 1) { # Avoid default print
>     DT[, v := runif(idx)]
> }
>
> just to avoid cluttering my screen. I could of course wrap it in 
> invisible() instead, though I am not sure that makes for much cleaner 
> code, or use
>
> DT$v <- with(DT, runif(idx))
>
> when adding new columns. But I thought := was clever and used an 
> overallocation trick, and I of course wanted to benefit from this.
>
> Allan
>
>
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