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From: | Stefan Tzeggai |
Subject: | Re: Performance questions: workspace_size default value and temp file directory |
Date: | Wed, 20 Mar 2013 21:36:17 +0100 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130308 Thunderbird/17.0.4 |
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Am 20.03.2013 19:08, schrieb John Darrington: > On Wed, Mar 20, 2013 at 05:33:50PM +0100, Stefan Tzeggai wrote: > Thanks for recommending PSPP-Perl for converting CSV to SAV > > I have only found > http://search.cpan.org/~pdonelan/PSPP-Perl-0.7.2.20090730/lib/PSPP.pm > but I need at least GNU pspp 0.7.9 (Fri Jun 29 19:31:48 UTC 2012) since > i need the CSV import "/ENCODING" option which has only been added in > June 2012. > > Lets imagine I would find/build a recent version of the PSPP-Perl module... > > Do you think it would perform significantly better in regards to memory > and speed? > > Right now I am dynamically generating the PSPP-Skripts and that works > perfectly - except for huge memory demand vs. slow performance tradeof. > > Do you know any good reason - or does you stomache tell you somehow - > that it would need less memory? > > Using the perl module will be magnitudes faster and use less memory than > than using PSPP, the program. This is because all it does is copy data, > whereas PSPP is a very sophisticate statistical analysis program and > has to do lots more work. > > Your mention of the /ENCODING option, however confuses me, because it is not > something that is relevant to the perl module. You are right. After looking at some examples I now get an idea of what I will have to do. https://metacpan.org/module/PDONELAN/PSPP-Perl-0.7.2.20090730/Examples.pod Thank you very much... -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with undefined - http://www.enigmail.net/ iEYEARECAAYFAlFKHbwACgkQdFDQR1G1dv0CTwCfanY/xRQlQ9819IpkA//3eP3m G+AAn3S9SzeYZx1s9rsK2KUpn/LeLurC =mkCJ -----END PGP SIGNATURE----- |
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