1 PSPP NEWS -- history of user-visible changes.
2 Copyright (C) 1996-2000, 2008-2016 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 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 dialog box for the Logistic Regression command will now
29 infer that string variables or any varible with a "measure"
30 of Nominal or Ordinal are to be treated as categorical variables
31 and will generate syntax accordingly.
33 * The pspp-convert utility can now decrypt encrypted syntax files.
34 The encrypted syntax file format is unacceptably insecure, so to
35 discourage its use PSPP and PSPPIRE do not directly read or write
38 * Bug fixes, including the following notable ones:
40 - The correlation coefficient in the paired samples t-test
41 procedure is now correctly calculated when presented with
44 - The ESCAPE subcommand has been removed from GET DATA /TYPE=TXT.
45 For compatibility, the behavior that ESCAPE enabled is now the
46 default and only supported behavior.
48 - Rendering of the variable and data sheets in right-to-left locales
51 * The IMPORTCASES subcommand on GET DATA is now ignored, for
54 Changes from 0.8.4 to 0.8.5:
56 * The FREQUENCIES and CROSSTABS commands can now generate barcharts.
58 * The FACTOR command can now perform PROMAX rotations.
60 * SPSS/PC+ system files are now supported on GET and other commands
61 that read SPSS system files. The pspp-convert program can now read
62 SPSS/PC+ system files. Writing the obsolete SPSS/PC+ system file
63 format is not supported.
65 * SYSFILE INFO can now read SPSS/PC+ system files and SPSS portable
68 * FREQUENCIES: A bug was fixed where an assertion failure occured
69 when an empty dataset was presented.
71 * The GRAPH command is now available. Initially it supports
72 scatterplots and histograms.
74 * The RND operator in expressions now supports additional operands
75 for rounding to values other than integers and to indicate a level
76 of rounding fuzz. The default rounding fuzz may now be controlled
77 and displayed with SET FUZZBITS and SHOW FUZZBITS, respectively.
79 Changes from 0.8.3 to 0.8.4:
81 * Formatting of SYSFILE INFO output was made easier to read.
83 * Bug fixes, including the following notable ones:
85 - FREQUENCIES works properly for string variables. (This bug was
88 - CROSSTABS now correctly computes all of the measures that it
89 offers. Some measures have been removed because they were not
92 - The NPAR TESTS calculation of significance for the RUNS
93 subcommand has been corrected.
95 - Planned comparisons in ONEWAY ANOVA now correctly handle negative
98 - The COUNT command now correctly treats missing values as
101 - Conformance fixes to Open Document output format.
103 Changes from 0.8.2 to 0.8.3:
105 * Independent T-Tests displayed the standard error of the difference
106 and the confidence interval for the unequal variances case, where
107 the equal variances case should have been. This has been fixed.
109 * REGRESSION now recognises /STATISTICS=CI(x) which causes confidence
110 intervals for the coefficients to be printed.
112 * When DESCRIPTIVES calculates Z scores, it now omits cases filtered
113 by the current FILTER settings.
115 * PSPPIRE graphical user interface improvements:
117 - Dialog boxes with source variable lists can now choose the sort
118 order; right click and select from the popup menu.
120 - File|Open now allows an encoding to be selected for opening
123 - File|Display Data File Information|External File... now allows an
124 encoding to be selected.
126 - A problem with the Means dialog has been resolved (bug #41433).
128 - Several problems related to the input of spreadsheets have been
129 fixed (bug #41657, #41620
131 * System file related improvements:
133 - With ENCODING="DETECT", SYSFILE INFO can now help the user to
134 pick an encoding for reading a system file that does not identify
137 - SYSFILE INFO now accepts an ENCODING subcommand to specify the
138 character encoding of string data in the system file.
140 - Variable labels over 255 bytes long are now accepted without
141 truncation (bug #41863).
143 - System files that contain duplicate variable names may now be
144 read successfully (bug #41475).
146 Changes from 0.8.1 to 0.8.2:
148 * Charts are now rendered with colours from the Tango palette instead
149 of fully saturated primaries.
151 * Support for new system file variants:
153 - PSPP can now read and write ZCOMPRESSED system files, which
154 compress data much more effectively than older "compressed"
155 files. (The older format is still supported.)
157 - PSPP can now decrypt encrypted system files, using the new
158 pspp-convert utility. The encrypted system file format is
159 unacceptably insecure, so to discourage its use PSPP and PSPPIRE
160 do not directly read or write this format.
162 * Missing values for long string variables are now read from and
163 written to system files in an SPSS-compatible fashion.
165 (Earlier versions of PSPP that supported missing values for long
166 string variables wrote them to system files in an SPSS-incompatible
167 way. To fix the problem, read the system file with this version of
168 PSPP and then save a new copy of it.)
170 * pspp-convert, a new standalone utility for converting SPSS system
171 and portable files to other formats, is now included. The initial
172 version supports comma-separated value files as output format.
173 pspp-convert can also decrypt encrypted system files.
177 - zlib is now a required dependency. (Previously it was optional.)
179 Changes from 0.8.0 to 0.8.1:
185 * Changes to existing commands:
187 - CROSSTABS: The requirement that one expected count must be less than five
188 before Fishers Exact Test will be reported has been removed.
190 * PSPPIRE graphical user interface improvements:
192 - A new set of icons has been contributed.
194 - Syntax windows now parse syntax in "auto" mode, which in practice
195 should mean that both "batch" and "interactive" syntax now works,
196 instead of just "interactive" syntax.
198 - The variable pane of data windows now include a Role column.
202 - System files written by IBM SPSS 21 are now read without warnings.
204 - System files written by "VOXCO INTERVIEWER 4.3" are now read
207 - PSPPIRE should now more gracefully handle syntax files that contain
210 Changes from 0.6.2 to 0.8.0:
216 - DATAFILE ATTRIBUTES
223 - LOGISTIC REGRESSION
227 - PRESERVE and RESTORE
231 - SAVE TRANSLATE to CSV and tab-delimited files
233 - VARIABLE ATTRIBUTES
235 * Changes to existing commands:
237 - AUTORECODE has a new GROUP subcommand.
239 - CROSSTABS has been re-implemented to fix numerous bugs.
241 - EXAMINE: /MISSING=LISTWISE is now the default.
243 - DO REPEAT command has been reimplemented. Now, when DO REPEAT
244 contains an INCLUDE or INSERT command, substitutions are not
245 applied to the included file.
247 - FILE HANDLE has a new ENDS subcommand to select CR or CRLF new-lines.
249 - HOST has been updated to use more modern syntax.
251 - Most commands that work with data files now support a new
254 - MISSING VALUES can now assign missing values to long string
257 - ONEWAY: the POSTHOC subcommand is now implemented.
259 - The following new subcommands to NPAR TESTS have been implemented:
260 COCHRAN, FRIEDMAN, JONCKHEERE-TERPSTRA, KENDALL, KRUSKAL-WALLIS, MANN-WHITNEY,
261 MCNEMAR, SIGN, WILCOXON, and RUNS
263 - SET and SHOW no longer have ENDCMD, NULLINE, PROMPT, CPROMPT, and
264 DPROMPT subcommands. The defaults are now fixed values.
266 - SHOW now has a JOURNAL subcommand, to show the location of the
269 - VALUE LABELS can now assign value labels to long string
272 * Other language changes:
274 - The new DATASET commands replace the "scratch file" PSPP
275 extension, which is no longer supported.
277 - Strings may now include arbitrary Unicode code points specified
278 in hexadecimal, using the syntax U'hhhh'. For example, Unicode
279 code point U+1D11E, the musical G clef character, may be
280 expressed as U'1D11E'.
282 See the "Tokens" section in the PSPP manual for more information.
284 - In previous versions of PSPP, in a string expressed in
285 hexadecimal with X'hh' syntax, the hexadecimal digits expressed
286 bytes in the locale encoding. In this version of PSPP, X'hh'
287 syntax always expresses bytes in UTF-8 encoding.
289 See the "Tokens" section in the PSPP manual for more information.
291 * PSPPIRE graphical user interface improvements:
293 - Added support for non-ASCII characters in strings, labels and
296 - A "Split Window" function is available, which makes it easier to
297 see different parts of a large data file.
299 - Data files can now be opened by specifing their name as the first
300 argument. This means that on a properly configured desktop, double
301 clicking on an icon will open the file.
303 - Foreign formats, such as Gnumeric, OpenDocument and CSV can be imported
304 via using an "intelligent" application assistant dialog.
308 - The new "cairo" output driver supports output in PostScript, PDF,
309 and SVG formats. Its functionality is a superset of that of the
310 "postscript" driver, which has been removed. You must have Cairo
311 and Pango installed to build the "cairo" driver.
313 - Charts are now produced with Cairo and Pango, instead of libplot.
314 Without them, the new graphing features will not work. If you do
315 not have Cairo and Pango installed, you must run `configure' with
318 - The plain text output driver now properly supports multibyte UTF-8
319 characters, including double-width characters and combining
322 - Output to OpenDocument format is now supported.
324 - The HTML output is much improved.
326 * The "pspp" program has a new option --batch (or -b) that selects
327 "batch" syntax mode. In previous versions of PSPP this syntax mode
328 was the default. Now a new "auto" syntax mode is the default. In
329 "auto" mode, PSPP interprets most syntax files correctly regardless
330 of their intended syntax mode.
332 See the "Syntax Variants" section in the PSPP manual for more
335 * The "pspp" program has a new option --syntax-encoding that
336 specifies the encoding for syntax files listed on the command line,
337 as well as the default encoding for syntax files included with
338 INCLUDE or INSERT. The default is to accept the system locale
339 encoding, UTF-8, UTF-16, or UTF-32, automatically detecting which
340 one the system file uses.
342 See the documentation for the INSERT command in the PSPP manual for
345 * Text data files that PRINT and WRITE creates now use the system
346 native line ends by default (CRLF on Windows, LF only elsewhere).
347 Use the new ENDS subcommand on FILE HANDLE to override the default.
349 * A new Perl module allows Perl programs to read and write PSPP
352 * A tutorial chapter has been added to the user manual.
354 Changes from 0.6.1 to 0.6.2:
358 - Dutch, thanks to Harry Thijssen.
360 - Brazilian Portuguese, thanks to Michel Boaventura.
362 Thanks for translations are also due to the coordinators at
363 translationproject.org.
365 * Statistical bug fixes:
367 - REGRESSION: Report correct standard error of the estimate (bug
370 - T-TEST: Report correct significance of paired sample T-test in
371 the common case (bug #26936) and corner cases. Thanks to Mike
372 Griffiths and Matej Cepl for reporting these bugs.
374 * Build fixes and changes:
376 - Fix build with GTK+ 2.17.4 and later.
378 - Make running "make" after running "configure" with different
379 settings reliably rebuild version.c.
381 - Cygwin and MinGW build fixes.
383 - Fixes for building with recent gnulib.
385 - The Makefile now honors two new variables, PSPP_LDFLAGS and
386 PSPPIRE_LDFLAGS, that affect linking of the PSPP and PSPPIRE
387 binaries, respectively. This makes building easier for some
390 - Fixes for "configure --enable-relocatable" (bug #25508).
392 * Data file bug fixes and changes:
394 - Fix reading text data files that contain a mix of white space
395 and commas. Now "a ,b" is treated as two fields containing "a"
396 and "b"; previously it was treated as three, with an empty field
399 - Fix writing corrupted .sav files on Windows.
401 - Fix writing variable labels longer than 252 bytes to save files.
402 Thanks to Robert Westlund for reporting this bug.
404 - Fix writing corrupted .por files (bug #26034).
406 - Fix reading .por files whose initial lines are not padded out
407 with spaces as expected.
409 - PSPP will no longer issue warnings about some .sav file records
410 or values that it does not understand. These warnings were
411 harmless, but needlessly alarmed some users.
413 - Fix crash reading empty string fields from PostgreSQL databases.
415 * Bug fixes that affect PSPP and PSPPIRE:
417 - Users may now control precision of output statistics. Instead
418 of hard coding the width and decimals of output numbers, respect
419 the default format in most instances. Counts are now normally
420 displayed with the format of the weight variable, if any.
422 - Fix crash when an INSERT command specifies the name of a file
423 that does not exist (bug #24569).
425 - Fix crash when CROSSTABS specifies a long-string variable (bugs
428 - Fix crash drawing pie charts with many segments.
430 - Fix crash when NUMERIC specifies an invalid format.
432 * PSPPIRE bug fixes and changes:
434 - On Windows, write the output file to the user's home directory
435 instead of the current directory, to better match user
438 - Some data editor fixes.
442 - Fix typo in BINOMIAL section of user manual (bug #25892).
444 Changes from 0.6.0 to 0.6.1:
446 * Statistical bug fixes:
448 - Report correct standardized regression coefficients in linear
449 regression output (bug #23567).
451 * Bug fixes that affect PSPP and PSPPIRE:
453 - Avoid crash with pie charts (bug #24014).
455 - Don't append % to count totals (bug #24003).
457 - Don't crash on bad input (bug #24031).
459 - Don't crash if "end data." is not left aligned (bug #24115).
461 - Change default workspace value to 64 MB, to avoid unnecessary
462 disk accesses on modern machines.
466 - Add ".sav" or ".por" suffix to filename when saving with Save_As
469 - Make it possible to reopen the output window on Windows (bug
472 - A POSIX regular expression library is now included and used
473 automatically if the host does not have one or has one that is
476 * Build fixes and changes:
478 - Work around bug in GSL that prevented build with recent GCC
479 versions without manually adding -fgnu89-inline to CFLAGS.
481 - Also warn about missing prerequisites as we encounter them (bug
484 - Distribute necessary files to allow users working from the
485 distributed tarball to configure with --enable-gui-tools.
487 - Append $(EXEEXT_FOR_BUILD) to output file name when building
488 q2c, fixing build problems on Windows.
490 - GSL 1.8 or later is now required.
492 - Build errors with --enable-relocatable were fixed.
494 * The German translations were removed, since native German speakers
495 found them too poor to be useful.
497 Changes from 0.4.0 to 0.6.0:
499 * The PSPP license is now version 3 or later of the GNU General
500 Public License. Previously, it was version 2 or later.
502 * PSPP now has a graphical interface, called PSPPIRE. This
503 interface allows you to enter data and variable definitions
504 interactively. Commands may be executed in syntax form, or by
505 using the interactive dialog boxes available from the dropdown
508 * A few sample syntax files are now included in the `examples'
511 * Numerous major and minor bugs have been fixed.
515 * The INSTALL file now reflects the details of how to install
516 PSPP. It is a tailored version of the generic installation
517 instructions, instead of a verbatim copy.
519 * iconv, which is ordinarily installed as part of a Unix-like
520 system, is now required. If you don't have it already, you can
521 install GNU libiconv (http://www.gnu.org/software/libiconv/).
523 * libxml2 and zlib are new optional dependencies. They are
524 required to use PSPP's support for reading Gnumeric files.
526 Statistical procedure changes:
528 * REGRESSION is a new procedure for fitting linear models to data
529 via least-squares estimation.
531 * NPAR TESTS is a new procedure for non-parametric tests. In this
532 release, it supports binomial and chi-square tests.
534 * RANK is a new procedure to rank variables. It supports numerous
537 * FREQUENCIES can now output histograms and pie charts. These
538 features were present in earlier releases, but not documented.
540 User interface changes:
542 * In many situations where PSPP once terminated with a fatal
543 error, PSPP now recovers and continues execution.
545 * PSPP is now able to start up and run even if it cannot find its
548 * Journaling of interactive commands to a disk file is now
549 implemented. By default, journaling is enabled, to a file named
550 `pspp.jnl' in the current directory. SET JOURNAL may be used to
553 * The use of `+' between syntax file names on the command line to
554 prevent the dictionary from being cleared between their
555 executions is no longer supported. All syntax files are now
556 executed as if `+' had been specified.
558 * The -d/--define and -u/--undef command line options are no
559 longer supported. Instead, use /usr/bin/env or shell primitives
560 to define or clear environment variables before invoking PSPP.
562 * If a syntax file named named `rc' is found in a configuration
563 directory (such as $HOME/.pspp), it is executed before any
564 syntax file specified on the command line. The -r or
565 --no-statrc command line option may be used to disable this
570 * Output configuration options have changed. Please refer to the
571 manual for a full description of the available options.
573 In consequence, you will need to reinstall your "devices" file.
574 "make install" will do this for you.
576 * Most error messages are now written to PSPP output files by
577 default. SET ERROR can be used to disable this behavior.
579 * When invoked interactively, PSPP now by default produces output
580 on the terminal, piping it through the "more" program.
581 Previously, by default output was written only to file
582 pspp.list. On most terminals, the page length used for output
583 automatically adapts to the terminal size, even if the terminal
588 - This driver now supports charts in output. Charts are written
589 as separate files that the main output file refers to. By
590 default, charts are written in PNG format to files named
591 pspp-1.png, pspp-2.png, and so on.
593 - Configurations are provided that use VT100 (and xterm)
594 line-drawing characters in tables. The option "-o list-vt100"
595 requests use of this device for output to pspp.list.
599 - The default paper size is now determined using the PAPERSIZE
600 environment variable, or the LC_PAPER locale category on
601 systems that support it. If these are not set, the default is
602 now A4, instead of US letter. To make US letter the default,
603 set PAPERSIZE to "letter" in your environment.
605 - Font metrics are now read from AFM files, instead of
606 Groff-format metrics files. PostScript fonts can now be
609 In consequence, you will need to install an AFM file for each
610 font used in PostScript output. "make install" will install
611 AFM files for the standard PostScript fonts, including the
612 ones that the PostScript driver uses by default.
614 - Standard paper sizes no longer need to be specified through a
615 configuration file. The "papersize" configuration file is no
616 longer needed, or supported.
618 - The PostScript prologue is no longer obtained from the
619 "ps-prologue" configuration file. This configuration file is
620 no longer needed, or supported.
624 - The HTML prologue is no longer obtained from the
625 "html-prologue" configuration file. This configuration file
626 is no longer needed, or supported.
628 Command language changes:
630 * The following commands are new:
632 - GET DATA, which currently supports reading Gnumeric files and
633 text data files. It will be extended later to read other
634 types of foreign data.
636 - CD, to change the current directory.
638 - INSERT, to execute a syntax file.
640 - DELETE VARIABLES, to remove variables from the active file
643 - ADD DOCUMENT, to add text to active file documents.
645 - CLOSE FILE HANDLE (a PSPP extension; see below).
647 - XEXPORT, a PSPP extension that is a transformation equivalent
650 * The following functions for transformation expressions are new:
652 - DATEDIFF, for computing the difference of two dates.
654 - DATESUM, for advancing a date by a specified duration.
656 - VALUELABEL, to obtain the value label for a value.
658 * PSPP now supports very long string variables (over 255 bytes
661 * MATCH FILES now supports the FIRST and LAST subcommands.
663 * Previous versions of PSPP prohibited using commands to both read and
664 write a single file at the same time. Now, PSPP allows this, and
665 the new version of the file atomically replaces the old version.
667 * The following commands are no longer available. They will be
668 re-implemented in a later release:
670 - CLEAR TRANSFORMATIONS
676 * The PROCESS IF command, which was deprecated, has been removed.
677 You may replace any usage of it by SELECT IF following
678 TEMPORARY, which has the same effect.
680 * The output format for variables created by VECTOR may now be
681 specified as part of the VECTOR syntax.
683 "Scratch files", a new PSPP extension:
685 A scratch file, like a system file, consists of a dictionary and
686 any number of cases. Small scratch files are stored in memory;
687 one that grows too large is written to disk. By default, any file
688 handle whose name begins with # is assumed to refer to a scratch
691 Scratch files can be used just about anywhere a system or portable
692 file can be used. Also, portable files are now allowed in most
693 places that system files were allowed in previous PSPP version.
695 A new CLOSE FILE HANDLE command allows the storage associated with
696 scratch files to be freed. It also allows file handles to be
697 reassigned to new files.
699 For more information on scratch files, refer to the "File Handles"
700 section in the PSPP manual. For specifics of what commands now
701 allow what kinds of files to be specified, refer to the
702 documentation on those particular commands.
706 * Binary formats and IBM/360 formats, including ASCII/EBCDIC
707 translation, are now supported. Use FILE HANDLE to specify the
708 format of these files.
710 * Little-endian, big-endian, and VAX-endian formats are now
711 supported for integer binary formats when reading and writing
712 data files. The new RIB and WIB subcommands on the SET command
713 control endianness of integer data. The default is the host's
716 * IEEE 754, VAX, and IBM hexadecimal formats are now supported for
717 floating point binary formats when reading and writing data
718 files. The new RRB and WRB subcommands on the SET command
719 control the floating point format. The default is the host's
720 native floating point format.
722 * DATA LIST now supports the SKIP subcommand, to skip records at
723 the beginning of a file. For compatibility, DATA LIST now
724 treats N format as F format for FREE and LIST format input.
726 * The SAVE and XSAVE commands now support the UNSELECTED,
727 PERMISSIONS, NAMES, and MAP subcommands.
729 * The EXPORT command has been re-implemented to obtain better
730 results. Support for the UNSELECTED, DIGITS, and TYPE
731 subcommands has been added.
733 * For compatibility, PRINT now inserts a space at the beginning of
734 every output line, even lines that would otherwise be blank,
735 when OUTFILE is specified. (The behavior of WRITE is
738 * For compatibility, PRINT EJECT now inserts the digit `1' at the
739 beginning of each line that should begin a new page.
741 * For compatibility, WRITE now outputs the system-missing value as
742 a field filled with spaces. Binary formats are an exception.
743 (The behavior of PRINT is unchanged.)
747 * Input and output format descriptions have been rewritten. They
748 now precisely describe what is accepted on input and written on
751 * The descriptions of the PSPP system and portable file formats
752 have been extensively revised and improved.
754 For developers, the build system now requires Autoconf 2.60 and
757 Changes from 0.3.0 to 0.4.0:
759 Changes in build dependencies:
761 * The GNU Scientific Library (libgsl), version 1.6 or later, is
764 * libplot from GNU plotutils is optional. Without it, the new
765 graphing features will not work. If you do not have it
766 installed, you must run `configure' with --without-libplot.
768 * libgmp2 is no longer a dependency.
770 Newly implemented commands and statistical features:
772 * EXAMINE, including its graphing features.
774 * FREQUENCIES now supports percentiles.
782 * SORT CASES now sorts stably, that is, two cases with equal sort
783 criteria will be in the same relative order before and after the
786 * T-TEST (re-written).
788 * DATE and USE. These commands are parsed but otherwise ignored,
789 to enhance compatibility with certain command files that invoke
792 * VARIABLE WIDTH, VARIABLE ALIGNMENT, and VARIABLE LEVEL. These
793 currently have no effect on PSPP output, but their values are
794 written to and read from system files and thus may affect
795 third-party software.
797 * SET EPOCH implemented.
799 * DATA LIST FREE and DATA LIST LIST now support arbitrary field
802 * FILE HANDLE now supports custom tab widths.
804 Long variable names (and other identifiers) are now supported. Up
805 to the first 64 bytes of each identifier is significant. PSPP now
806 reads and writes system files compatible with SPSS version 12.
808 New --algorithm and --syntax command line options allow
809 SPSS-compatible or enhanced modes to be selected.
811 Support for transformation expressions has been rewritten and
812 significantly improved. Refer to the manual for details.
814 Calculation of moments (mean, standard deviation, kurtosis,
815 skewness) has been rewritten and should now be more accurate. In
816 --algorithm=enhanced mode moments may be more accurate than SPSS in
819 Numerous bugs have been fixed, too many to mention here. Many new
820 tests have been added, leading to the discovery and fixing of many
823 The ASCII output driver can now squeeze multiple blank lines into
826 Much of the code has been rewritten and refactored. It is now much
829 The FILE TYPE and REPEATING DATA commands have been disabled for
830 this release because their implementations were deemed too buggy to
831 be useful. They will be fixed and replaced in a future release.
833 New pspp-mode for Emacs (in pspp-mode.el).
835 Added rudimentary command-line completion for interactive input.
837 lib/julcal and lib/dcdflib are no longer used, so they have been
840 For developers, the build system now requires Autoconf 2.58 and
841 Automake 1.7. The included gettext has been updated to version
844 Some reports state that Texinfo 4.8, the latest version, may be
845 necessary to successfully format the documentation on some systems.
847 Version 0.3.0 changes since 0.2.3:
851 * Using alphanumeric variables in functions under AGGREGATE
854 * Under certain circumstances, the final case would be omitted
855 from the results of an AGGREGATE operation. Fixed.
857 * Undefined behavior was invoked by referencing a freed pointer
858 under certain circumstances. Fixed.
860 * A wrong record size was displayed when paging the active file to
863 * Not having enough temporary space for sorting caused a core
866 * Syntax errors in function descriptions on AGGREGATE caused core
869 * A null pointer was dereferenced, causing a core dump, when
870 PERCENTILES was specified on FREQUENCIES. This fixes the
871 problem, but PSPP still doesn't calculate percentiles.
873 * SORT always sorted in ascending order. Fixed.
875 * Some minor memory leaks in the expression parser were removed.
877 * Many assertions fixed for strict ANSI C compliance.
881 * SET ECHO ON now implemented, but turned off by default.
883 * PRINT specifier supported on END REPEAT.
887 * System libgmp2 library is used if installed instead of
888 unconditionally using the included libgmp2 subset.
890 * Extensive code cleanup, which continues.
892 * Added CORRELATIONS command parser, but not implemented.
894 Version 0.2.3 changes since 0.2.2:
898 * SPLIT FILE with a string variable caused a core dump. Fixed.
900 * Nested INCLUDEs didn't work. Fixed.
902 * The MATCH FILES procedure set the values of variables not present
903 to 0. It should have been SYSMIS. This is now fixed.
905 * The REMARK command was too aggressive about skipping lines. It
906 didn't like being the last command in a file.
908 * Comment parsing wasn't consistent with the rest of the code in its
909 idea of where one command ends and another starts. This meant
910 that sometimes commands would be mysteriously ignored. Thanks to
911 Dr. Dirk Melcher <BZN-mdksh@t-online.de> for reporting this bug.
913 * The TABLE subcommand on MATCH FILES worked only erratically at
914 best. This fixes it. Thanks to Dr. Dirk Melcher
915 <BZN-mdksh@t-online.de> for reporting this bug.
917 * VARIABLE LABELS rejected a slash before the first variable
918 specification, contradicting the documentation. Thanks to Walter
919 M. Gray <graywm@northernc.on.ca> for reporting this bug.
921 * Because of an incorrect optimization in memory allocation,
922 CROSSTABS sometimes segfaulted when asked to output multiple
923 tables. Thanks to Walter M. Gray <graywm@northernc.on.ca> for
926 * CROSSTABS didn't display value labels for column and row
927 variables. Thanks to Walter M. Gray <graywm@northernc.on.ca> for
930 * WRITE didn't write line ends. Fixed. Thanks to Dr. Dirk Melcher
931 <BZN-mdksh@t-online.de> for reporting this bug.
933 * The TABLE subcommand on MATCH FILES worked only erratically at
934 best. This fixes it. Thanks to Dr. Dirk Melcher
935 <BZN-mdksh@t-online.de> for reporting this bug.
937 * VARIABLE LABELS rejected a slash before the first variable
938 specification, contradicting the documentation. Thanks to Walter
939 M. Gray <graywm@northernc.on.ca> for reporting this bug.
941 * Because of an incorrect optimization in memory allocation,
942 CROSSTABS sometimes segfaulted when asked to output multiple
943 tables. Thanks to Walter M. Gray <graywm@northernc.on.ca> for
946 * CROSSTABS didn't display value labels for column and row
947 variables. Thanks to Walter M. Gray <graywm@northernc.on.ca> for
950 * WRITE didn't write line ends. Fixed. Thanks to Dr. Dirk Melcher
951 <BZN-mdksh@t-online.de> for reporting this bug.
953 * MATCH FILES corrupted memory and dumped core on some syntax
956 * MATCH FILES should set numeric values not available to the
957 system-missing value, not to 0. Thanks to Dr. Dirk Melcher
958 <BZN-mdksh@t-online.de> for reporting this bug.
960 * KEEP didn't work properly on the SAVE procedure. Fixed. Thanks
961 to Ralf Geschke <ralf@kuerbis.org> for reporting this bug.
965 * Some systems didn't like the way open_file was coded. Thanks to
966 Hankin <hankin@rogue.consultco.com> for pointing this out.
968 * The SAVE procedure didn't save long string variables properly.
969 Fixed by this patch. Thanks to Hankin
970 <hankin@rogue.consultco.com> for this patch.
972 * Minor documentation fixes for MATCH FILES.
974 Version 0.2.2 changes since 0.2.1:
978 * Fix behavior of PRINT SPACE for negative arguments.
980 * Fix reading some unusual system files.
982 * Fix LIST problems with very long variables. Thanks to Hankin
983 <hankin@dunno.com> for this bug report.
985 * Fix problems with some string format specifiers.
987 * Fix use of $CASENUM in expressions. Thanks to Dirk Melcher
988 <BZN-mdksh@t-online.de> for reporting this bug.
990 * Additional DATA LIST FREE and DATA LIST LIST fixes. Thanks to
991 Hankin <hankin@dunno.com> again on this one.
993 * Sometimes you may encounter a PSPP script that has to be
994 interpreted in interactive mode. Now you can use the -i flag to
997 * Warnings for egcs 1.1.1 cleaned up. (However you'll get lots of
998 `unused variable' warnings under gcc 2.7.2.3, fixing this will
1003 * The files in gmp need the internationalization directory in
1004 their include path. Thanks to OKUJI Yoshinori
1005 <okuji@kuicr.kyoto-u.ac.jp> for pointing this out.
1007 Version 0.2.1 changes since 0.2.0:
1011 * Remember to include examples/ directory in distribution :-)
1013 * Fixed gmp compile problems for some non-i386 architectures.
1014 Thanks to Hans Olav Eggestad <olav@jordforsk.nlh.no> and others
1017 * DATA LIST FREE and DATA LIST LIST parsing of input files is now
1018 matches the documented behavior exactly, and error messages are
1019 more helpful. Thanks to Mark H. Wood <mwood@IUPUI.Edu>.
1021 Version 0.2.0 changes since 0.1.0:
1023 Procedures now implemented:
1024 * CROSSTABS. Please see documentation for caveats.
1026 Transformations and utilities now implemented:
1029 * CLEAR TRANSFORMATIONS
1030 * DISPLAY (all subcommands).
1041 Support for input and output through pipes: "|command" and
1042 "command|" filenames; support for special filenames "-", "stdin",
1045 New command-line features:
1046 * New option --testing-mode: Invoke heuristics to assist testing.
1047 * New option --safer, -s: Don't allow certain unsafe operations.
1048 * New option --command=CMD, -c CMD: Perform literal command CMD.
1049 * rc file ~/.pspp/rc is executed before any other files.
1050 * Now multiple syntax files can be specified.
1052 Operator LAG is now implemented.
1054 Added missing FILE subcommand to REREAD.
1056 Table output manager completely rewritten.
1058 Device configuration file syntax changed. You will need to
1059 reinstall your `devices' file.
1061 New output driver for HTML.
1063 PostScript driver and prologue simplified.
1065 Many bugs fixed. General source-code cleanup.
1067 Added Texinfo documentation for:
1068 * PSPP system file format
1069 * PSPP portable file format
1070 * How to write input for q2c parser generator
1073 PSPP language is now fully documented. Please report any
1074 inaccuracies or omissions in the documentation.
1076 Changes for version 0.1.0:
1078 First public release. For changes from unreleased development
1079 versions, please see ONEWS.
1081 ----------------------------------------------------------------------
1082 Copyright information:
1084 Permission is granted to anyone to make or distribute verbatim
1085 copies of this document as received, in any medium, provided that
1086 the copyright notice and this permission notice are preserved, thus
1087 giving the recipient permission to redistribute in turn.
1089 Permission is granted to distribute modified versions of this
1090 document, or of portions of it, under the above conditions,
1091 provided also that they carry prominent notices stating who last
1095 version-control: never