Key for reading changes to |STAT:                        (set tab stops to 4)
    [+] new program  [-] deleted program     [F] new feature
    [M] modification of existing feature     [R] robustness enhancements

Recent Changes
    General
        updated all code to be ANSI C compatible
    Specific Programs
        probdist: [F]  added -q option for quick random number generation
        features: [MR] made compatible with other |STAT program options
        dprime:   [FM] added -p option and new I/O formats, repaired file-input
        colex:    [FM] added -c option for fixed column input (like cut)

Changes for Release 5.4 March 1989
    General
        Added missing value (NA) handling for most analysis programs
    Specific Programs
        pair:     [F] added correlation coefficient to plots
        anova:    [F] added sorting for numerical factor labels, DOS LAN support
        contab:   [F] added sorting for numerical factor labels, DOS LAN support
                  [F] added -i option to restrict # of reported interactions
        ff:       [F] added file statistics language to three-part titles
        calc, dm: [R] added special code to fix Sun conversion software bug
        features: [+] summarize features of several items

Changes for Release 5.3  January 1987
    General
        Random number seeding on MSDOS now uses the system clock;
            it is never interactive (affects MSDOS dm, perm, probdist).
        Several rank order analyses are now supported.
    Specific Programs
        contab:   [M] removed -m option for marginal totals; they are automatic
        desc      [F] added standard deviations of skew and kurtosis
        linex:    [+] for line extraction
        oneway:   [M] removed -w option to request weighted means solution with
                  unweighted solution, -P plotwidth option now requested with -w
        rankind:  [+] analyze rank-order data for independent conditions
                  Median Test, Mann-Whitney U, Kruskal-Wallice H
        rankrel:  [+] analyze rank-order data for related conditions
                  Sign Test, Wilcoxon, Friedman, Spearman Rho
        probdist: [F] binomial (b N p1/p2) distribution added
        probdist: [M] output format for verbose option modified
        ranksort: [F] reversal option added (-r)
        repeat:   [FM] added several new options, changed syntax
        series:   [M] minor syntax changes
        stats:    [M] added standard option parser and -v (verbose) option

Changes for Release 5.2  October 1986
    General
        Second Edition of Handbook (with manual entries)
        Handbook examples now online
        Manual entries no longer distributed separate from handbook
        for infinite F ratios, 9999 is used
    Specific Programs
        cat:      [+] added for MSDOS compatibility
        colex:    [F] formatted output of columns added
        dm:       [R] some new operators added, bugs fixed
        dm:       [F] random seed now follows R[AND] operator
        dm:       [M] no longer checks for non-numerical inputs (use number(si))
        dsort:    [+] for sorting data files by columns
        ff:       [+] for pagination, simple text formatting
        fpack:    [+] for packing files into plain archives
        perm:     [F] sorting options added
        regress:  [R] improved matrix calculations

Changes for Release 5.2  January 1986
    General
        on-line help in most programs (-LOV options)
        |STAT Handbook and new manual entries
        on-line manuals on MSDOS
    Specific Programs
        probdist: [+] 5 probability distributions with random number generation
        pof:      [-] deleted from distribution (probdist)
        chisq:    [-] deleted from distribution (probdist)
        contab:   [+] crosstabs and chi-square program
        pair:     [F] plotting options added
        dataplot: [-] deleted from distribution (use pair plotting options)
        anova:    [R] program more robust against invalid designs
        oneway:   [F] error bar plots, unweighted means solution
        regress:  [F] better support for residual plotting (-e option)
        vincent:  [-] no longer distributed (use ts -l option)

Changes for Release 5.1  November 1985
    General
        several minor bugs removed
        full package ported to MSDOS
    Specific Programs
        calc:      [R] some syntax bugs fixed, ported to MSDOS
        stats:     [+] for simple statistics
        trans:     [-] no longer distributed (dm now on MSDOS)

Changes for Release 5.0  March 1985
    General
        reworked to increase portability, reliability, usability
        most commands now use standard option parser (getopt)
        [R] all calculations now done in double precision
        [R] improved error messages
        [R] better approximations for F-ratios
        efficiency of I/O improved
        most programs ported to MSDOS
        [R] improved random number seeding on UNIX (perm, dm)
        standard exit status (0) on successful runs
        version control added
    Specific Programs
        regress:   [F] partial correlation analysis
        colex:     [+] added as faster alternative to dm
        trans:     [+] added as alternative to dm (later dropped)