1 PSPP NEWS -- history of user-visible changes.
2 Copyright (C) 1996-2000, 2008-2015 Free Software Foundation, Inc.
3 See the end for copying conditions.
5 Please send PSPP bug reports to bug-gnu-pspp@gnu.org.
7 Changes from 0.8.5 to 0.9.0:
9 * The QUICK CLUSTER command has a /PRINT subcommand which shows
10 the initial cluster centres and the final cluster membership of
11 each case. The clustering algorithm has also been updated, so
12 as to produce better separated clusters.
14 * A Russian localisation has been contributed.
16 * The GRAPH command now has a /BAR subcommand to draw barcharts.
18 * The graphical user interface (psppire) has been changed as follows:
20 - It now uses Gtk+ version 3 instead of version 2. Accordingly, it has a
21 somewhat different look and feel.
23 - There is now has a Graphs menu to access the GRAPH command.
25 - The status of dialog box widgets are now preserved between calls
26 to the same dialog box for the same dataset.
28 * The pspp-convert utility can now decrypt encrypted syntax files.
29 The encrypted syntax file format is unacceptably insecure, so to
30 discourage its use PSPP and PSPPIRE do not directly read or write
33 * Bug fixes, including the following notable ones:
35 - The correlation coefficient in the paired samples t-test
36 procedure is now correctly calculated when presented with
39 - The ESCAPE subcommand has been removed from GET DATA /TYPE=TXT.
40 For compatibility, the behavior that ESCAPE enabled is now the
41 default and only supported behavior.
43 Changes from 0.8.4 to 0.8.5:
45 * The FREQUENCIES and CROSSTABS commands can now generate barcharts.
47 * The FACTOR command can now perform PROMAX rotations.
49 * SPSS/PC+ system files are now supported on GET and other commands
50 that read SPSS system files. The pspp-convert program can now read
51 SPSS/PC+ system files. Writing the obsolete SPSS/PC+ system file
52 format is not supported.
54 * SYSFILE INFO can now read SPSS/PC+ system files and SPSS portable
57 * FREQUENCIES: A bug was fixed where an assertion failure occured
58 when an empty dataset was presented.
60 * The GRAPH command is now available. Initially it supports
61 scatterplots and histograms.
63 * The RND operator in expressions now supports additional operands
64 for rounding to values other than integers and to indicate a level
65 of rounding fuzz. The default rounding fuzz may now be controlled
66 and displayed with SET FUZZBITS and SHOW FUZZBITS, respectively.
68 Changes from 0.8.3 to 0.8.4:
70 * Formatting of SYSFILE INFO output was made easier to read.
72 * Bug fixes, including the following notable ones:
74 - FREQUENCIES works properly for string variables. (This bug was
77 - CROSSTABS now correctly computes all of the measures that it
78 offers. Some measures have been removed because they were not
81 - The NPAR TESTS calculation of significance for the RUNS
82 subcommand has been corrected.
84 - Planned comparisons in ONEWAY ANOVA now correctly handle negative
87 - The COUNT command now correctly treats missing values as
90 - Conformance fixes to Open Document output format.
92 Changes from 0.8.2 to 0.8.3:
94 * Independent T-Tests displayed the standard error of the difference
95 and the confidence interval for the unequal variances case, where
96 the equal variances case should have been. This has been fixed.
98 * REGRESSION now recognises /STATISTICS=CI(x) which causes confidence
99 intervals for the coefficients to be printed.
101 * When DESCRIPTIVES calculates Z scores, it now omits cases filtered
102 by the current FILTER settings.
104 * PSPPIRE graphical user interface improvements:
106 - Dialog boxes with source variable lists can now choose the sort
107 order; right click and select from the popup menu.
109 - File|Open now allows an encoding to be selected for opening
112 - File|Display Data File Information|External File... now allows an
113 encoding to be selected.
115 - A problem with the Means dialog has been resolved (bug #41433).
117 - Several problems related to the input of spreadsheets have been
118 fixed (bug #41657, #41620
120 * System file related improvements:
122 - With ENCODING="DETECT", SYSFILE INFO can now help the user to
123 pick an encoding for reading a system file that does not identify
126 - SYSFILE INFO now accepts an ENCODING subcommand to specify the
127 character encoding of string data in the system file.
129 - Variable labels over 255 bytes long are now accepted without
130 truncation (bug #41863).
132 - System files that contain duplicate variable names may now be
133 read successfully (bug #41475).
135 Changes from 0.8.1 to 0.8.2:
137 * Charts are now rendered with colours from the Tango palette instead
138 of fully saturated primaries.
140 * Support for new system file variants:
142 - PSPP can now read and write ZCOMPRESSED system files, which
143 compress data much more effectively than older "compressed"
144 files. (The older format is still supported.)
146 - PSPP can now decrypt encrypted system files, using the new
147 pspp-convert utility. The encrypted system file format is
148 unacceptably insecure, so to discourage its use PSPP and PSPPIRE
149 do not directly read or write this format.
151 * Missing values for long string variables are now read from and
152 written to system files in an SPSS-compatible fashion.
154 (Earlier versions of PSPP that supported missing values for long
155 string variables wrote them to system files in an SPSS-incompatible
156 way. To fix the problem, read the system file with this version of
157 PSPP and then save a new copy of it.)
159 * pspp-convert, a new standalone utility for converting SPSS system
160 and portable files to other formats, is now included. The initial
161 version supports comma-separated value files as output format.
162 pspp-convert can also decrypt encrypted system files.
166 - zlib is now a required dependency. (Previously it was optional.)
168 Changes from 0.8.0 to 0.8.1:
174 * Changes to existing commands:
176 - CROSSTABS: The requirement that one expected count must be less than five
177 before Fishers Exact Test will be reported has been removed.
179 * PSPPIRE graphical user interface improvements:
181 - A new set of icons has been contributed.
183 - Syntax windows now parse syntax in "auto" mode, which in practice
184 should mean that both "batch" and "interactive" syntax now works,
185 instead of just "interactive" syntax.
187 - The variable pane of data windows now include a Role column.
191 - System files written by IBM SPSS 21 are now read without warnings.
193 - System files written by "VOXCO INTERVIEWER 4.3" are now read
196 - PSPPIRE should now more gracefully handle syntax files that contain
199 Changes from 0.6.2 to 0.8.0:
205 - DATAFILE ATTRIBUTES
212 - LOGISTIC REGRESSION
216 - PRESERVE and RESTORE
220 - SAVE TRANSLATE to CSV and tab-delimited files
222 - VARIABLE ATTRIBUTES
224 * Changes to existing commands:
226 - AUTORECODE has a new GROUP subcommand.
228 - CROSSTABS has been re-implemented to fix numerous bugs.
230 - EXAMINE: /MISSING=LISTWISE is now the default.
232 - DO REPEAT command has been reimplemented. Now, when DO REPEAT
233 contains an INCLUDE or INSERT command, substitutions are not
234 applied to the included file.
236 - FILE HANDLE has a new ENDS subcommand to select CR or CRLF new-lines.
238 - HOST has been updated to use more modern syntax.
240 - Most commands that work with data files now support a new
243 - MISSING VALUES can now assign missing values to long string
246 - ONEWAY: the POSTHOC subcommand is now implemented.
248 - The following new subcommands to NPAR TESTS have been implemented:
249 COCHRAN, FRIEDMAN, JONCKHEERE-TERPSTRA, KENDALL, KRUSKAL-WALLIS, MANN-WHITNEY,
250 MCNEMAR, SIGN, WILCOXON, and RUNS
252 - SET and SHOW no longer have ENDCMD, NULLINE, PROMPT, CPROMPT, and
253 DPROMPT subcommands. The defaults are now fixed values.
255 - SHOW now has a JOURNAL subcommand, to show the location of the
258 - VALUE LABELS can now assign value labels to long string
261 * Other language changes:
263 - The new DATASET commands replace the "scratch file" PSPP
264 extension, which is no longer supported.
266 - Strings may now include arbitrary Unicode code points specified
267 in hexadecimal, using the syntax U'hhhh'. For example, Unicode
268 code point U+1D11E, the musical G clef character, may be
269 expressed as U'1D11E'.
271 See the "Tokens" section in the PSPP manual for more information.
273 - In previous versions of PSPP, in a string expressed in
274 hexadecimal with X'hh' syntax, the hexadecimal digits expressed
275 bytes in the locale encoding. In this version of PSPP, X'hh'
276 syntax always expresses bytes in UTF-8 encoding.
278 See the "Tokens" section in the PSPP manual for more information.
280 * PSPPIRE graphical user interface improvements:
282 - Added support for non-ASCII characters in strings, labels and
285 - A "Split Window" function is available, which makes it easier to
286 see different parts of a large data file.
288 - Data files can now be opened by specifing their name as the first
289 argument. This means that on a properly configured desktop, double
290 clicking on an icon will open the file.
292 - Foreign formats, such as Gnumeric, OpenDocument and CSV can be imported
293 via using an "intelligent" application assistant dialog.
297 - The new "cairo" output driver supports output in PostScript, PDF,
298 and SVG formats. Its functionality is a superset of that of the
299 "postscript" driver, which has been removed. You must have Cairo
300 and Pango installed to build the "cairo" driver.
302 - Charts are now produced with Cairo and Pango, instead of libplot.
303 Without them, the new graphing features will not work. If you do
304 not have Cairo and Pango installed, you must run `configure' with
307 - The plain text output driver now properly supports multibyte UTF-8
308 characters, including double-width characters and combining
311 - Output to OpenDocument format is now supported.
313 - The HTML output is much improved.
315 * The "pspp" program has a new option --batch (or -b) that selects
316 "batch" syntax mode. In previous versions of PSPP this syntax mode
317 was the default. Now a new "auto" syntax mode is the default. In
318 "auto" mode, PSPP interprets most syntax files correctly regardless
319 of their intended syntax mode.
321 See the "Syntax Variants" section in the PSPP manual for more
324 * The "pspp" program has a new option --syntax-encoding that
325 specifies the encoding for syntax files listed on the command line,
326 as well as the default encoding for syntax files included with
327 INCLUDE or INSERT. The default is to accept the system locale
328 encoding, UTF-8, UTF-16, or UTF-32, automatically detecting which
329 one the system file uses.
331 See the documentation for the INSERT command in the PSPP manual for
334 * Text data files that PRINT and WRITE creates now use the system
335 native line ends by default (CRLF on Windows, LF only elsewhere).
336 Use the new ENDS subcommand on FILE HANDLE to override the default.
338 * A new Perl module allows Perl programs to read and write PSPP
341 * A tutorial chapter has been added to the user manual.
343 Changes from 0.6.1 to 0.6.2:
347 - Dutch, thanks to Harry Thijssen.
349 - Brazilian Portuguese, thanks to Michel Boaventura.
351 Thanks for translations are also due to the coordinators at
352 translationproject.org.
354 * Statistical bug fixes:
356 - REGRESSION: Report correct standard error of the estimate (bug
359 - T-TEST: Report correct significance of paired sample T-test in
360 the common case (bug #26936) and corner cases. Thanks to Mike
361 Griffiths and Matej Cepl for reporting these bugs.
363 * Build fixes and changes:
365 - Fix build with GTK+ 2.17.4 and later.
367 - Make running "make" after running "configure" with different
368 settings reliably rebuild version.c.
370 - Cygwin and MinGW build fixes.
372 - Fixes for building with recent gnulib.
374 - The Makefile now honors two new variables, PSPP_LDFLAGS and
375 PSPPIRE_LDFLAGS, that affect linking of the PSPP and PSPPIRE
376 binaries, respectively. This makes building easier for some
379 - Fixes for "configure --enable-relocatable" (bug #25508).
381 * Data file bug fixes and changes:
383 - Fix reading text data files that contain a mix of white space
384 and commas. Now "a ,b" is treated as two fields containing "a"
385 and "b"; previously it was treated as three, with an empty field
388 - Fix writing corrupted .sav files on Windows.
390 - Fix writing variable labels longer than 252 bytes to save files.
391 Thanks to Robert Westlund for reporting this bug.
393 - Fix writing corrupted .por files (bug #26034).
395 - Fix reading .por files whose initial lines are not padded out
396 with spaces as expected.
398 - PSPP will no longer issue warnings about some .sav file records
399 or values that it does not understand. These warnings were
400 harmless, but needlessly alarmed some users.
402 - Fix crash reading empty string fields from PostgreSQL databases.
404 * Bug fixes that affect PSPP and PSPPIRE:
406 - Users may now control precision of output statistics. Instead
407 of hard coding the width and decimals of output numbers, respect
408 the default format in most instances. Counts are now normally
409 displayed with the format of the weight variable, if any.
411 - Fix crash when an INSERT command specifies the name of a file
412 that does not exist (bug #24569).
414 - Fix crash when CROSSTABS specifies a long-string variable (bugs
417 - Fix crash drawing pie charts with many segments.
419 - Fix crash when NUMERIC specifies an invalid format.
421 * PSPPIRE bug fixes and changes:
423 - On Windows, write the output file to the user's home directory
424 instead of the current directory, to better match user
427 - Some data editor fixes.
431 - Fix typo in BINOMIAL section of user manual (bug #25892).
433 Changes from 0.6.0 to 0.6.1:
435 * Statistical bug fixes:
437 - Report correct standardized regression coefficients in linear
438 regression output (bug #23567).
440 * Bug fixes that affect PSPP and PSPPIRE:
442 - Avoid crash with pie charts (bug #24014).
444 - Don't append % to count totals (bug #24003).
446 - Don't crash on bad input (bug #24031).
448 - Don't crash if "end data." is not left aligned (bug #24115).
450 - Change default workspace value to 64 MB, to avoid unnecessary
451 disk accesses on modern machines.
455 - Add ".sav" or ".por" suffix to filename when saving with Save_As
458 - Make it possible to reopen the output window on Windows (bug
461 - A POSIX regular expression library is now included and used
462 automatically if the host does not have one or has one that is
465 * Build fixes and changes:
467 - Work around bug in GSL that prevented build with recent GCC
468 versions without manually adding -fgnu89-inline to CFLAGS.
470 - Also warn about missing prerequisites as we encounter them (bug
473 - Distribute necessary files to allow users working from the
474 distributed tarball to configure with --enable-gui-tools.
476 - Append $(EXEEXT_FOR_BUILD) to output file name when building
477 q2c, fixing build problems on Windows.
479 - GSL 1.8 or later is now required.
481 - Build errors with --enable-relocatable were fixed.
483 * The German translations were removed, since native German speakers
484 found them too poor to be useful.
486 Changes from 0.4.0 to 0.6.0:
488 * The PSPP license is now version 3 or later of the GNU General
489 Public License. Previously, it was version 2 or later.
491 * PSPP now has a graphical interface, called PSPPIRE. This
492 interface allows you to enter data and variable definitions
493 interactively. Commands may be executed in syntax form, or by
494 using the interactive dialog boxes available from the dropdown
497 * A few sample syntax files are now included in the `examples'
500 * Numerous major and minor bugs have been fixed.
504 * The INSTALL file now reflects the details of how to install
505 PSPP. It is a tailored version of the generic installation
506 instructions, instead of a verbatim copy.
508 * iconv, which is ordinarily installed as part of a Unix-like
509 system, is now required. If you don't have it already, you can
510 install GNU libiconv (http://www.gnu.org/software/libiconv/).
512 * libxml2 and zlib are new optional dependencies. They are
513 required to use PSPP's support for reading Gnumeric files.
515 Statistical procedure changes:
517 * REGRESSION is a new procedure for fitting linear models to data
518 via least-squares estimation.
520 * NPAR TESTS is a new procedure for non-parametric tests. In this
521 release, it supports binomial and chi-square tests.
523 * RANK is a new procedure to rank variables. It supports numerous
526 * FREQUENCIES can now output histograms and pie charts. These
527 features were present in earlier releases, but not documented.
529 User interface changes:
531 * In many situations where PSPP once terminated with a fatal
532 error, PSPP now recovers and continues execution.
534 * PSPP is now able to start up and run even if it cannot find its
537 * Journaling of interactive commands to a disk file is now
538 implemented. By default, journaling is enabled, to a file named
539 `pspp.jnl' in the current directory. SET JOURNAL may be used to
542 * The use of `+' between syntax file names on the command line to
543 prevent the dictionary from being cleared between their
544 executions is no longer supported. All syntax files are now
545 executed as if `+' had been specified.
547 * The -d/--define and -u/--undef command line options are no
548 longer supported. Instead, use /usr/bin/env or shell primitives
549 to define or clear environment variables before invoking PSPP.
551 * If a syntax file named named `rc' is found in a configuration
552 directory (such as $HOME/.pspp), it is executed before any
553 syntax file specified on the command line. The -r or
554 --no-statrc command line option may be used to disable this
559 * Output configuration options have changed. Please refer to the
560 manual for a full description of the available options.
562 In consequence, you will need to reinstall your "devices" file.
563 "make install" will do this for you.
565 * Most error messages are now written to PSPP output files by
566 default. SET ERROR can be used to disable this behavior.
568 * When invoked interactively, PSPP now by default produces output
569 on the terminal, piping it through the "more" program.
570 Previously, by default output was written only to file
571 pspp.list. On most terminals, the page length used for output
572 automatically adapts to the terminal size, even if the terminal
577 - This driver now supports charts in output. Charts are written
578 as separate files that the main output file refers to. By
579 default, charts are written in PNG format to files named
580 pspp-1.png, pspp-2.png, and so on.
582 - Configurations are provided that use VT100 (and xterm)
583 line-drawing characters in tables. The option "-o list-vt100"
584 requests use of this device for output to pspp.list.
588 - The default paper size is now determined using the PAPERSIZE
589 environment variable, or the LC_PAPER locale category on
590 systems that support it. If these are not set, the default is
591 now A4, instead of US letter. To make US letter the default,
592 set PAPERSIZE to "letter" in your environment.
594 - Font metrics are now read from AFM files, instead of
595 Groff-format metrics files. PostScript fonts can now be
598 In consequence, you will need to install an AFM file for each
599 font used in PostScript output. "make install" will install
600 AFM files for the standard PostScript fonts, including the
601 ones that the PostScript driver uses by default.
603 - Standard paper sizes no longer need to be specified through a
604 configuration file. The "papersize" configuration file is no
605 longer needed, or supported.
607 - The PostScript prologue is no longer obtained from the
608 "ps-prologue" configuration file. This configuration file is
609 no longer needed, or supported.
613 - The HTML prologue is no longer obtained from the
614 "html-prologue" configuration file. This configuration file
615 is no longer needed, or supported.
617 Command language changes:
619 * The following commands are new:
621 - GET DATA, which currently supports reading Gnumeric files and
622 text data files. It will be extended later to read other
623 types of foreign data.
625 - CD, to change the current directory.
627 - INSERT, to execute a syntax file.
629 - DELETE VARIABLES, to remove variables from the active file
632 - ADD DOCUMENT, to add text to active file documents.
634 - CLOSE FILE HANDLE (a PSPP extension; see below).
636 - XEXPORT, a PSPP extension that is a transformation equivalent
639 * The following functions for transformation expressions are new:
641 - DATEDIFF, for computing the difference of two dates.
643 - DATESUM, for advancing a date by a specified duration.
645 - VALUELABEL, to obtain the value label for a value.
647 * PSPP now supports very long string variables (over 255 bytes
650 * MATCH FILES now supports the FIRST and LAST subcommands.
652 * Previous versions of PSPP prohibited using commands to both read and
653 write a single file at the same time. Now, PSPP allows this, and
654 the new version of the file atomically replaces the old version.
656 * The following commands are no longer available. They will be
657 re-implemented in a later release:
659 - CLEAR TRANSFORMATIONS
665 * The PROCESS IF command, which was deprecated, has been removed.
666 You may replace any usage of it by SELECT IF following
667 TEMPORARY, which has the same effect.
669 * The output format for variables created by VECTOR may now be
670 specified as part of the VECTOR syntax.
672 "Scratch files", a new PSPP extension:
674 A scratch file, like a system file, consists of a dictionary and
675 any number of cases. Small scratch files are stored in memory;
676 one that grows too large is written to disk. By default, any file
677 handle whose name begins with # is assumed to refer to a scratch
680 Scratch files can be used just about anywhere a system or portable
681 file can be used. Also, portable files are now allowed in most
682 places that system files were allowed in previous PSPP version.
684 A new CLOSE FILE HANDLE command allows the storage associated with
685 scratch files to be freed. It also allows file handles to be
686 reassigned to new files.
688 For more information on scratch files, refer to the "File Handles"
689 section in the PSPP manual. For specifics of what commands now
690 allow what kinds of files to be specified, refer to the
691 documentation on those particular commands.
695 * Binary formats and IBM/360 formats, including ASCII/EBCDIC
696 translation, are now supported. Use FILE HANDLE to specify the
697 format of these files.
699 * Little-endian, big-endian, and VAX-endian formats are now
700 supported for integer binary formats when reading and writing
701 data files. The new RIB and WIB subcommands on the SET command
702 control endianness of integer data. The default is the host's
705 * IEEE 754, VAX, and IBM hexadecimal formats are now supported for
706 floating point binary formats when reading and writing data
707 files. The new RRB and WRB subcommands on the SET command
708 control the floating point format. The default is the host's
709 native floating point format.
711 * DATA LIST now supports the SKIP subcommand, to skip records at
712 the beginning of a file. For compatibility, DATA LIST now
713 treats N format as F format for FREE and LIST format input.
715 * The SAVE and XSAVE commands now support the UNSELECTED,
716 PERMISSIONS, NAMES, and MAP subcommands.
718 * The EXPORT command has been re-implemented to obtain better
719 results. Support for the UNSELECTED, DIGITS, and TYPE
720 subcommands has been added.
722 * For compatibility, PRINT now inserts a space at the beginning of
723 every output line, even lines that would otherwise be blank,
724 when OUTFILE is specified. (The behavior of WRITE is
727 * For compatibility, PRINT EJECT now inserts the digit `1' at the
728 beginning of each line that should begin a new page.
730 * For compatibility, WRITE now outputs the system-missing value as
731 a field filled with spaces. Binary formats are an exception.
732 (The behavior of PRINT is unchanged.)
736 * Input and output format descriptions have been rewritten. They
737 now precisely describe what is accepted on input and written on
740 * The descriptions of the PSPP system and portable file formats
741 have been extensively revised and improved.
743 For developers, the build system now requires Autoconf 2.60 and
746 Changes from 0.3.0 to 0.4.0:
748 Changes in build dependencies:
750 * The GNU Scientific Library (libgsl), version 1.6 or later, is
753 * libplot from GNU plotutils is optional. Without it, the new
754 graphing features will not work. If you do not have it
755 installed, you must run `configure' with --without-libplot.
757 * libgmp2 is no longer a dependency.
759 Newly implemented commands and statistical features:
761 * EXAMINE, including its graphing features.
763 * FREQUENCIES now supports percentiles.
771 * SORT CASES now sorts stably, that is, two cases with equal sort
772 criteria will be in the same relative order before and after the
775 * T-TEST (re-written).
777 * DATE and USE. These commands are parsed but otherwise ignored,
778 to enhance compatibility with certain command files that invoke
781 * VARIABLE WIDTH, VARIABLE ALIGNMENT, and VARIABLE LEVEL. These
782 currently have no effect on PSPP output, but their values are
783 written to and read from system files and thus may affect
784 third-party software.
786 * SET EPOCH implemented.
788 * DATA LIST FREE and DATA LIST LIST now support arbitrary field
791 * FILE HANDLE now supports custom tab widths.
793 Long variable names (and other identifiers) are now supported. Up
794 to the first 64 bytes of each identifier is significant. PSPP now
795 reads and writes system files compatible with SPSS version 12.
797 New --algorithm and --syntax command line options allow
798 SPSS-compatible or enhanced modes to be selected.
800 Support for transformation expressions has been rewritten and
801 significantly improved. Refer to the manual for details.
803 Calculation of moments (mean, standard deviation, kurtosis,
804 skewness) has been rewritten and should now be more accurate. In
805 --algorithm=enhanced mode moments may be more accurate than SPSS in
808 Numerous bugs have been fixed, too many to mention here. Many new
809 tests have been added, leading to the discovery and fixing of many
812 The ASCII output driver can now squeeze multiple blank lines into
815 Much of the code has been rewritten and refactored. It is now much
818 The FILE TYPE and REPEATING DATA commands have been disabled for
819 this release because their implementations were deemed too buggy to
820 be useful. They will be fixed and replaced in a future release.
822 New pspp-mode for Emacs (in pspp-mode.el).
824 Added rudimentary command-line completion for interactive input.
826 lib/julcal and lib/dcdflib are no longer used, so they have been
829 For developers, the build system now requires Autoconf 2.58 and
830 Automake 1.7. The included gettext has been updated to version
833 Some reports state that Texinfo 4.8, the latest version, may be
834 necessary to successfully format the documentation on some systems.
836 Version 0.3.0 changes since 0.2.3:
840 * Using alphanumeric variables in functions under AGGREGATE
843 * Under certain circumstances, the final case would be omitted
844 from the results of an AGGREGATE operation. Fixed.
846 * Undefined behavior was invoked by referencing a freed pointer
847 under certain circumstances. Fixed.
849 * A wrong record size was displayed when paging the active file to
852 * Not having enough temporary space for sorting caused a core
855 * Syntax errors in function descriptions on AGGREGATE caused core
858 * A null pointer was dereferenced, causing a core dump, when
859 PERCENTILES was specified on FREQUENCIES. This fixes the
860 problem, but PSPP still doesn't calculate percentiles.
862 * SORT always sorted in ascending order. Fixed.
864 * Some minor memory leaks in the expression parser were removed.
866 * Many assertions fixed for strict ANSI C compliance.
870 * SET ECHO ON now implemented, but turned off by default.
872 * PRINT specifier supported on END REPEAT.
876 * System libgmp2 library is used if installed instead of
877 unconditionally using the included libgmp2 subset.
879 * Extensive code cleanup, which continues.
881 * Added CORRELATIONS command parser, but not implemented.
883 Version 0.2.3 changes since 0.2.2:
887 * SPLIT FILE with a string variable caused a core dump. Fixed.
889 * Nested INCLUDEs didn't work. Fixed.
891 * The MATCH FILES procedure set the values of variables not present
892 to 0. It should have been SYSMIS. This is now fixed.
894 * The REMARK command was too aggressive about skipping lines. It
895 didn't like being the last command in a file.
897 * Comment parsing wasn't consistent with the rest of the code in its
898 idea of where one command ends and another starts. This meant
899 that sometimes commands would be mysteriously ignored. Thanks to
900 Dr. Dirk Melcher <BZN-mdksh@t-online.de> for reporting this bug.
902 * The TABLE subcommand on MATCH FILES worked only erratically at
903 best. This fixes it. Thanks to Dr. Dirk Melcher
904 <BZN-mdksh@t-online.de> for reporting this bug.
906 * VARIABLE LABELS rejected a slash before the first variable
907 specification, contradicting the documentation. Thanks to Walter
908 M. Gray <graywm@northernc.on.ca> for reporting this bug.
910 * Because of an incorrect optimization in memory allocation,
911 CROSSTABS sometimes segfaulted when asked to output multiple
912 tables. Thanks to Walter M. Gray <graywm@northernc.on.ca> for
915 * CROSSTABS didn't display value labels for column and row
916 variables. Thanks to Walter M. Gray <graywm@northernc.on.ca> for
919 * WRITE didn't write line ends. Fixed. Thanks to Dr. Dirk Melcher
920 <BZN-mdksh@t-online.de> for reporting this bug.
922 * The TABLE subcommand on MATCH FILES worked only erratically at
923 best. This fixes it. Thanks to Dr. Dirk Melcher
924 <BZN-mdksh@t-online.de> for reporting this bug.
926 * VARIABLE LABELS rejected a slash before the first variable
927 specification, contradicting the documentation. Thanks to Walter
928 M. Gray <graywm@northernc.on.ca> for reporting this bug.
930 * Because of an incorrect optimization in memory allocation,
931 CROSSTABS sometimes segfaulted when asked to output multiple
932 tables. Thanks to Walter M. Gray <graywm@northernc.on.ca> for
935 * CROSSTABS didn't display value labels for column and row
936 variables. Thanks to Walter M. Gray <graywm@northernc.on.ca> for
939 * WRITE didn't write line ends. Fixed. Thanks to Dr. Dirk Melcher
940 <BZN-mdksh@t-online.de> for reporting this bug.
942 * MATCH FILES corrupted memory and dumped core on some syntax
945 * MATCH FILES should set numeric values not available to the
946 system-missing value, not to 0. Thanks to Dr. Dirk Melcher
947 <BZN-mdksh@t-online.de> for reporting this bug.
949 * KEEP didn't work properly on the SAVE procedure. Fixed. Thanks
950 to Ralf Geschke <ralf@kuerbis.org> for reporting this bug.
954 * Some systems didn't like the way open_file was coded. Thanks to
955 Hankin <hankin@rogue.consultco.com> for pointing this out.
957 * The SAVE procedure didn't save long string variables properly.
958 Fixed by this patch. Thanks to Hankin
959 <hankin@rogue.consultco.com> for this patch.
961 * Minor documentation fixes for MATCH FILES.
963 Version 0.2.2 changes since 0.2.1:
967 * Fix behavior of PRINT SPACE for negative arguments.
969 * Fix reading some unusual system files.
971 * Fix LIST problems with very long variables. Thanks to Hankin
972 <hankin@dunno.com> for this bug report.
974 * Fix problems with some string format specifiers.
976 * Fix use of $CASENUM in expressions. Thanks to Dirk Melcher
977 <BZN-mdksh@t-online.de> for reporting this bug.
979 * Additional DATA LIST FREE and DATA LIST LIST fixes. Thanks to
980 Hankin <hankin@dunno.com> again on this one.
982 * Sometimes you may encounter a PSPP script that has to be
983 interpreted in interactive mode. Now you can use the -i flag to
986 * Warnings for egcs 1.1.1 cleaned up. (However you'll get lots of
987 `unused variable' warnings under gcc 2.7.2.3, fixing this will
992 * The files in gmp need the internationalization directory in
993 their include path. Thanks to OKUJI Yoshinori
994 <okuji@kuicr.kyoto-u.ac.jp> for pointing this out.
996 Version 0.2.1 changes since 0.2.0:
1000 * Remember to include examples/ directory in distribution :-)
1002 * Fixed gmp compile problems for some non-i386 architectures.
1003 Thanks to Hans Olav Eggestad <olav@jordforsk.nlh.no> and others
1006 * DATA LIST FREE and DATA LIST LIST parsing of input files is now
1007 matches the documented behavior exactly, and error messages are
1008 more helpful. Thanks to Mark H. Wood <mwood@IUPUI.Edu>.
1010 Version 0.2.0 changes since 0.1.0:
1012 Procedures now implemented:
1013 * CROSSTABS. Please see documentation for caveats.
1015 Transformations and utilities now implemented:
1018 * CLEAR TRANSFORMATIONS
1019 * DISPLAY (all subcommands).
1030 Support for input and output through pipes: "|command" and
1031 "command|" filenames; support for special filenames "-", "stdin",
1034 New command-line features:
1035 * New option --testing-mode: Invoke heuristics to assist testing.
1036 * New option --safer, -s: Don't allow certain unsafe operations.
1037 * New option --command=CMD, -c CMD: Perform literal command CMD.
1038 * rc file ~/.pspp/rc is executed before any other files.
1039 * Now multiple syntax files can be specified.
1041 Operator LAG is now implemented.
1043 Added missing FILE subcommand to REREAD.
1045 Table output manager completely rewritten.
1047 Device configuration file syntax changed. You will need to
1048 reinstall your `devices' file.
1050 New output driver for HTML.
1052 PostScript driver and prologue simplified.
1054 Many bugs fixed. General source-code cleanup.
1056 Added Texinfo documentation for:
1057 * PSPP system file format
1058 * PSPP portable file format
1059 * How to write input for q2c parser generator
1062 PSPP language is now fully documented. Please report any
1063 inaccuracies or omissions in the documentation.
1065 Changes for version 0.1.0:
1067 First public release. For changes from unreleased development
1068 versions, please see ONEWS.
1070 ----------------------------------------------------------------------
1071 Copyright information:
1073 Permission is granted to anyone to make or distribute verbatim
1074 copies of this document as received, in any medium, provided that
1075 the copyright notice and this permission notice are preserved, thus
1076 giving the recipient permission to redistribute in turn.
1078 Permission is granted to distribute modified versions of this
1079 document, or of portions of it, under the above conditions,
1080 provided also that they carry prominent notices stating who last
1084 version-control: never