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st: splitting a large file without reloading it in the memory.


From   "Ashim Kapoor" <ashimkapoor@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: splitting a large file without reloading it in the memory.
Date   Fri, 26 Dec 2008 10:35:00 +0530

Hello everyone,

Here is what I do now : ---

foreach x in apple orange mango {
clear
use hugefruitbasket <==== HUGE FILE
keep if symbol=="`x'"
save `x', replace

}

-------------------------------------------

So essentially I load a huge file in memory, which makes my computer
hang for a moment, then I keep a portion of it, give it a name and
save it.

------------------------------------------

What I want to do is : --- Load a big file ONCE, then do something like
save `x' if symbol==`x'
or outsheet  if symbol==`x'
so that I can save parts of the  file without reloading / messing the
original file.

I think this is very useful for me.

Is there a clever command to do this ?

Thank you,
Ashim.
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