All programs presented here are free and open source softwareThe users have the freedom to run, copy, distribute, study, change and improve the software. We defend these freedoms because everyone deserves them. With these freedoms, the users (both individually and collectively) control the program and what it does for them. In contrast the nonfree program controls the users, and the developer controls the program; this makes the program an instrument of unjust power.
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Bruno LECOUTRE Jacques POITEVINEAU
PAC was designed in the 1980s by Jacques Poitevineau,
in collaboration with Bruno Lecoutre for the statistical part itself.
It was written by Jacques Poitevineau in the FORTRAN 90 standard.
The subroutines are original, with the exception of a few from libraries.
LINPACK/EISPACK, and some mathematical functions.
like betacdf. f90 (when this is the case, the origin is indicated by comments in the source).
Originally, PAC was designed to run alone on most platforms in console mode. PAC consists of two main subsets: 1) The GMP subset (for Groupe Mathématiques et Psychologie). The purpose of the subprograms in this subset is the general processing of data (how many variables, their characteristics), What are the names to be given to variables, the name of the input data file, etc.? 2) The PAC subset that performs statistical analyses Each of these subsets uses the ANACOM7 toolbox (ANAlyse des COMmandes) for the analysis of user commands. The structure and syntax of these commands, as well as some aspects of the program's organization, were inspired by BMDP software. |
LePAC was originally a user-friendly Windows interface for running
PAC.
Other programmes have been gradually included: LesMoyennes implements in a simple and interactive way Bayesian procedures for average comparison problems. It includes the usual frequent dentist procedures, tests of significance and confidence intervals. It also makes accurate inferences for a correlation coefficient: Tests (null hypothesis ρ=0 ou ρ=ρ_{0}≠0), confidence intervals, fiducial-Bayesian procedures. LesEffectifs calculates Bayesian predictive probabilities and incorporates the power of traditional tests as a special case. LesEchantillons runs sample drawings and simulations of sampling distributions for descriptive and inferential statistics in the case of one or two samples of normal parent distributions. LesProportions makes Bayesian inferences on proportions. LeB-A-Bayésien has a didactic vocation to understand the B-A-BA. Bayesian inference from basic situation. LesDistributions allows to obtain both density curves, direct and inverse distribution functions, random (including cumulated) functions, and probability statements for direct and inverse distribution functions. A large number of continuous and discrete distributions are available, with transformations for continuous distributions and the possibility of lower (left) truncation and upper (right) truncation. LePrep can be used from a student t test or a F analysis of variance test with one degree of freedom to obtain the predictive probability prep ("Killeen's probability of replication"). to find an effect of the same sign in a replication. |
LePAC was written in Visual Basic by Bruno Lecoutre. Jacques Poitevineau wrote many functions in FORTRAN. |