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Re: st: regexr string function very slow in Stata13
From
Richard Williams <[email protected]>
To
[email protected], [email protected]
Subject
Re: st: regexr string function very slow in Stata13
Date
Fri, 13 Dec 2013 08:05:03 -0500
Something similar came up a few months ago:
http://www.stata.com/statalist/archive/2013-09/msg00190.html
I would check to make sure you have the most up to date version of
Stata 13.1; if there was a bug it may have been fixed.
At 05:20 AM 12/13/2013, Nicola Tommasi wrote:
Hi all
On my computer they are installed Stata12 and Stata13, but regexr
function run very slowly in Stata13. Here a log file
Any idea?
. count;
730649
. di "`c(stata_version)' - `c(os)' - `c(osdtl)' - `c(machine_type)'
- `c(processors)'";
13.1 - Windows - 64-bit - PC (64-bit x86-64) - 4
. timer on 1;
. gen var2 = regexr(var1,"<[^<>]+>","");
. timer off 1;
. timer list 1;
1: 54.88 / 1 = 54.8830
. timer on 2;
. replace var2 = regexr(var2,"<[^<>]+>","");
(730649 real changes made)
. timer off 2;
. timer list 2;
2: 54.14 / 1 = 54.1400
. count;
730649
. di "`c(stata_version)' - `c(os)' - `c(osdtl)' - `c(machine_type)'
- `c(processors)'";
12.1 - Windows - 64-bit - PC (64-bit x86-64) - 4
. timer on 1;
. gen var2 = regexr(var1,"<[^<>]+>","");
. timer off 1;
. timer list 1;
1: 1.43 / 1 = 1.4300
. timer on 2;
. replace var2 = regexr(var2,"<[^<>]+>","");
(730649 real changes made)
. timer off 2;
. timer list 2;
2: 0.49 / 1 = 0.4860
--
_______________________________________________________________________
dott. Nicola Tommasi
Centro Interdipartimentale di Documentazione Economica (C.I.D.E)
University of Verona
via dell'Artigliere, 19
37129 Verona (Italy)
tel.: +39-045-8028048
fax.: +39-045-8028047
Skype: nicola.tommasi
________________________________________________________________________
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-------------------------------------------
Richard Williams, Notre Dame Dept of Sociology
OFFICE: (574)631-6668, (574)631-6463
HOME: (574)289-5227
EMAIL: [email protected]
WWW: http://www.nd.edu/~rwilliam
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* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/faqs/resources/statalist-faq/
* http://www.ats.ucla.edu/stat/stata/