- PSPP Authors
-
- * Ben Pfaff wrote most of the program and the manual.
+We wish to thank current active contributors to PSPP:
- * John Williams originally wrote the T-TEST procedure, which was
- subsequently re-written by John Darrington
+* Ben Pfaff wrote the initial program and manual, which comprises the
+majority of the current code. Ben continues to contribute and
+most of the core libraries which ensure that PSPP runs with optimal
+speed are his work.
- * Jim Van Zandt translated the `julcal' date calculation package
- into C from code written by Michael Covington, which was based on
- formulae by Jean Meeus.
+* John Darrington wrote the initial version of the graphical user interface,
+and many of the statistical procedures. John also implemented support for
+long variable names, PostgreSQL and Gnumeric and made numerous
+revisions to other modules.
+
+* Jason Stover contributed statistical and numerical functionality,
+including lib/gslextras and the linear regression features. Jason
+is also an important contributor to GSL, which is used by PSPP.
+
+* Mehmet Hakan Satman provided the initial implementation of the QUICK CLUSTER command.
+ Alan Mead and others contributed later improvements including the cluster membership subcommands.
+
+* Friedrich Beckmann wrote the GRAPH command.
+
+We also thank past contributors:
+
+* John Williams wrote an initial draft of the T-TEST procedure.
+
+* Michael Kiefte contributed bug fixes and other enhancements.
+
+* Patrick Kobly contributed bug fixes and other enhancements.
+
+* Rob van Son wrote the original version of the routine for
+ calculation of the significance of the Wilcoxon matched pairs signed
+ rank statistic used by the NPAR TEST command.
- * John Darrington wrote the T-TEST and ONEWAY procedures, and made
- numerous revisions to other modules.
projects / pspp / blobdiff