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Re: st: Stata graphics speed

From   Ulrich Kohler <>
Subject   Re: st: Stata graphics speed
Date   Mon, 12 Jun 2006 12:35:49 +0200

I think it's because much of Stata graph-programs are written as Ado code. The 
programs have to be loaded into memory when used the first time, i.e. Stata 
have to look for the files. Graphs will take even longer if Stata is 
installed on a slow network. 

This is also just a guess.


Allan Reese (Cefas) wrote:
> Friedrich Huebler <> wrote 9 Jun 2006
> Subject: Re: st: Video card and Stata speed
> As an example, a fairly detailed map of the world drawn with -tmap-
> from SSC takes about one minute to render on my computer. ...
> Other Stata graphs like scatter plots or bar charts are *redrawn* [my
> emphasis] instantaneously and virtually nothing would be gained from a new
> video card.
> -----
> Something I've never understood is why graphs take a long time to appear in
> the first place.  Commands like "gen y=_n" happen immediately, even with
> quite large numbers of observations.  (I could just notice the delay with
> obs=1 millon). In contrast, a simple "scatter y x" with a few observations
> takes several seconds before anything appears.  That sometimes applies even
> when what comes up is a syntax error.  Can anyone explain?  I've guessed
> that the delay is while Windows allocates memory for the graph window, but
> that is just a guess.
> Allan
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