Right, they are identifiers. Storing them as String has drawbacks: - huge to store in memory - slow to process - huge to index (by eg data.table columns indexes)
Why not storing them as numeric ? Thanks, Le 20 janv. 2017 à 18h16, William Dunlap écrivait : > If these are identifiers, store them as strings. If not, what sort of > calculations do you plan on doing with them? > Bill Dunlap > TIBCO Software > wdunlap tibco.com > > > On Fri, Jan 20, 2017 at 6:33 AM, Nicolas Paris <nicolas.pa...@aphp.fr> wrote: > > Hello r users, > > > > I have to deal with int8 data with R. AFAIK R does only handle int4 > > with `as.integer` function [1]. I wonder: > > 1. what is the better approach to handle int8 ? `as.character` ? > > `as.numeric` ? > > 2. is there any plan to handle int8 in the future ? As you might know, > > int4 is to small to deal with earth population right now. > > > > Thanks for you ideas, > > > > int8 eg: > > > > human_id > > ---------------------- > > -1311071933951566764 > > -4708675461424073238 > > -6865005668390999818 > > 5578000650960353108 > > -3219674686933841021 > > -6469229889308771589 > > -606871692563545028 > > -8199987422425699249 > > -463287495999648233 > > 7675955260644241951 > > > > reference: > > 1. https://www.r-bloggers.com/r-in-a-64-bit-world/ > > > > -- > > Nicolas PARIS > > > > ______________________________________________ > > R-devel@r-project.org mailing list > > https://stat.ethz.ch/mailman/listinfo/r-devel -- Nicolas PARIS Responsable R & D WIND - PACTE, Hôpital Rothschild ( RTH ) Courriel : nicolas.pa...@aphp.fr Tel : 01 48 04 21 07 ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
