GNU PSPP A program for statistical analysis of sampled data. John - - PowerPoint PPT Presentation

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GNU PSPP A program for statistical analysis of sampled data. John Darrington 1 School of Computer Science and Software Engineering University of Western Australia Perth, WA, Australia The seventh Free and Open source Software Developers

SLIDE 1

GNU PSPP

A program for statistical analysis of sampled data. John Darrington

1School of Computer Science and Software Engineering

University of Western Australia Perth, WA, Australia

The seventh Free and Open source Software Developers’ European Meeting, 2007

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SLIDE 2

What is PSPP?

PSPP is: a GNU Project,

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SLIDE 3

What is PSPP?

PSPP is: a GNU Project, a program for statistical analysis of sampled data,

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SLIDE 4

What is PSPP?

PSPP is: a GNU Project, a program for statistical analysis of sampled data, a Free replacement for the proprietary program SPSS.

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SLIDE 5

What is PSPP?

PSPP is: a GNU Project, a program for statistical analysis of sampled data, a Free replacement for the proprietary program SPSS. Other Free statistical analysis projects include: GNU R (very powerful and complete. Not so easy to learn),

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SLIDE 6

What is PSPP?

PSPP is: a GNU Project, a program for statistical analysis of sampled data, a Free replacement for the proprietary program SPSS. Other Free statistical analysis projects include: GNU R (very powerful and complete. Not so easy to learn), Goose (C++ library),

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SLIDE 7

What is PSPP?

PSPP is: a GNU Project, a program for statistical analysis of sampled data, a Free replacement for the proprietary program SPSS. Other Free statistical analysis projects include: GNU R (very powerful and complete. Not so easy to learn), Goose (C++ library), GNU Octave (numerical analysis and linear algebra).

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PSPP place in the Free Software community?

PSPP fills a gap in the suite of Free Software tools. Other Free projects are arguably more mature and flexible than

PSPP. However, they are aimed at the hacker level, and are not so

amenable to non-hackers. PSPP aims to be substantially similar to SPSS, — a proprietary program used by medical researchers, psychologists, market analysts and social scientists.

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PSPP place in the Free Software community?

PSPP fills a gap in the suite of Free Software tools. Other Free projects are arguably more mature and flexible than

PSPP. However, they are aimed at the hacker level, and are not so

amenable to non-hackers. PSPP aims to be substantially similar to SPSS, — a proprietary program used by medical researchers, psychologists, market analysts and social scientists. PSPP is to an SPSS user what Naltrexone is to an opium addict

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What can PSPP do

PSPP currently features:

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What can PSPP do

PSPP currently features: GNU GPL — no licensing fees, no timebombs.

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What can PSPP do

PSPP currently features: GNU GPL — no licensing fees, no timebombs. Handles 232 cases and 232 variables.

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What can PSPP do

PSPP currently features: GNU GPL — no licensing fees, no timebombs. Handles 232 cases and 232 variables. Very fast processing, (some reports indicate faster than SPSS), even when data exceeds memory capacity.

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What can PSPP do

PSPP currently features: GNU GPL — no licensing fees, no timebombs. Handles 232 cases and 232 variables. Very fast processing, (some reports indicate faster than SPSS), even when data exceeds memory capacity. Complete set of mathematical functions, including random number distributions.

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What can PSPP do

PSPP currently features: GNU GPL — no licensing fees, no timebombs. Handles 232 cases and 232 variables. Very fast processing, (some reports indicate faster than SPSS), even when data exceeds memory capacity. Complete set of mathematical functions, including random number distributions. Identical command language to SPSS.

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What can PSPP do

PSPP currently features: GNU GPL — no licensing fees, no timebombs. Handles 232 cases and 232 variables. Very fast processing, (some reports indicate faster than SPSS), even when data exceeds memory capacity. Complete set of mathematical functions, including random number distributions. Identical command language to SPSS. Data file format identical to SPSS.

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What can PSPP do

PSPP currently features: GNU GPL — no licensing fees, no timebombs. Handles 232 cases and 232 variables. Very fast processing, (some reports indicate faster than SPSS), even when data exceeds memory capacity. Complete set of mathematical functions, including random number distributions. Identical command language to SPSS. Data file format identical to SPSS. GUI similar to SPSS.

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PSPP’s GUI

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What PSPP can’t do

PSPP is work in progress. Improvements are required:

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What PSPP can’t do

PSPP is work in progress. Improvements are required: More complete set of statistical procedures,

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What PSPP can’t do

PSPP is work in progress. Improvements are required: More complete set of statistical procedures, Improved output subsystem,

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What PSPP can’t do

PSPP is work in progress. Improvements are required: More complete set of statistical procedures, Improved output subsystem, Better integration with Gnome/OpenOffice.org,

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What PSPP can’t do

PSPP is work in progress. Improvements are required: More complete set of statistical procedures, Improved output subsystem, Better integration with Gnome/OpenOffice.org, Tutorial type documentation.

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SLIDE 24

Acknowledgements

Thanks to: Ben Pfaff (creator and current maintainer), Jason Stover (statistician and contributor), Patrick Brunier (graphic designer and website maintainer). http://www.gnu.org/software/pspp/index.html

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