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st: RE: Stata graphics speed
In Stata 8 much of the Stata code was
taken out of the executable and rewritten
as .ado and other files. Thus there can be
quite a heavy interpretative overload.
Also, a given graph requires
many files to be loaded into memory.
As an example,
scatter mpg weight
The full explanation of this is more
complicated than I know.
In any case, I doubt that the platform
-- in your case Windows -- is the only
> 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.
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