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Re: st: Re: memory required for -merge-


From   "Michael Blasnik" <michael.blasnik@verizon.net>
To   <statalist@hsphsun2.harvard.edu>
Subject   Re: st: Re: memory required for -merge-
Date   Thu, 09 Mar 2006 09:25:43 -0500

Really, there's no "hopefully" about it. The place name contains few enough values and is short enough to fit in a value label. The revised dataset will only add about 3 bytes per observation (an int and a byte), so it will only require about 60MB of RAM which will easily fit within the 666MB remaining.

Michael

----- Original Message ----- From: "Ada Ma" <heu034@googlemail.com>
To: <statalist@hsphsun2.harvard.edu>
Sent: Thursday, March 09, 2006 9:04 AM
Subject: Re: st: Re: memory required for -merge-



Turning the place_name variable from string to numeric with labels
would save a lot of bytes and (hopefully) make the merge possible.

rename place_name place_name1
encode place_name1, gen(place_name) label(place_name)
drop place_name1



On 3/9/06, Michael Blasnik <michael.blasnik@verizon.net> wrote:
You've gotten several replies that dance around the simple answer -- you are
trying to add a str39 variable to a dataset with more than 20 million
observations. That will require about 39*20m= 780MB of additional memory
and you've only got about 666MB free.

Michael Blasnik
michael.blasnik@verizon.net

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