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 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 - Rendering of the variable and data sheets in right-to-left locales
46 * The IMPORTCASES subcommand on GET DATA is now ignored, for
49 Changes from 0.8.4 to 0.8.5:
51 * The FREQUENCIES and CROSSTABS commands can now generate barcharts.
53 * The FACTOR command can now perform PROMAX rotations.
55 * SPSS/PC+ system files are now supported on GET and other commands
56 that read SPSS system files. The pspp-convert program can now read
57 SPSS/PC+ system files. Writing the obsolete SPSS/PC+ system file
58 format is not supported.
60 * SYSFILE INFO can now read SPSS/PC+ system files and SPSS portable
63 * FREQUENCIES: A bug was fixed where an assertion failure occured
64 when an empty dataset was presented.
66 * The GRAPH command is now available. Initially it supports
67 scatterplots and histograms.
69 * The RND operator in expressions now supports additional operands
70 for rounding to values other than integers and to indicate a level
71 of rounding fuzz. The default rounding fuzz may now be controlled
72 and displayed with SET FUZZBITS and SHOW FUZZBITS, respectively.
74 Changes from 0.8.3 to 0.8.4:
76 * Formatting of SYSFILE INFO output was made easier to read.
78 * Bug fixes, including the following notable ones:
80 - FREQUENCIES works properly for string variables. (This bug was
83 - CROSSTABS now correctly computes all of the measures that it
84 offers. Some measures have been removed because they were not
87 - The NPAR TESTS calculation of significance for the RUNS
88 subcommand has been corrected.
90 - Planned comparisons in ONEWAY ANOVA now correctly handle negative
93 - The COUNT command now correctly treats missing values as
96 - Conformance fixes to Open Document output format.
98 Changes from 0.8.2 to 0.8.3:
100 * Independent T-Tests displayed the standard error of the difference
101 and the confidence interval for the unequal variances case, where
102 the equal variances case should have been. This has been fixed.
104 * REGRESSION now recognises /STATISTICS=CI(x) which causes confidence
105 intervals for the coefficients to be printed.
107 * When DESCRIPTIVES calculates Z scores, it now omits cases filtered
108 by the current FILTER settings.
110 * PSPPIRE graphical user interface improvements:
112 - Dialog boxes with source variable lists can now choose the sort
113 order; right click and select from the popup menu.
115 - File|Open now allows an encoding to be selected for opening
118 - File|Display Data File Information|External File... now allows an
119 encoding to be selected.
121 - A problem with the Means dialog has been resolved (bug #41433).
123 - Several problems related to the input of spreadsheets have been
124 fixed (bug #41657, #41620
126 * System file related improvements:
128 - With ENCODING="DETECT", SYSFILE INFO can now help the user to
129 pick an encoding for reading a system file that does not identify
132 - SYSFILE INFO now accepts an ENCODING subcommand to specify the
133 character encoding of string data in the system file.
135 - Variable labels over 255 bytes long are now accepted without
136 truncation (bug #41863).
138 - System files that contain duplicate variable names may now be
139 read successfully (bug #41475).
141 Changes from 0.8.1 to 0.8.2:
143 * Charts are now rendered with colours from the Tango palette instead
144 of fully saturated primaries.
146 * Support for new system file variants:
148 - PSPP can now read and write ZCOMPRESSED system files, which
149 compress data much more effectively than older "compressed"
150 files. (The older format is still supported.)
152 - PSPP can now decrypt encrypted system files, using the new
153 pspp-convert utility. The encrypted system file format is
154 unacceptably insecure, so to discourage its use PSPP and PSPPIRE
155 do not directly read or write this format.
157 * Missing values for long string variables are now read from and
158 written to system files in an SPSS-compatible fashion.
160 (Earlier versions of PSPP that supported missing values for long
161 string variables wrote them to system files in an SPSS-incompatible
162 way. To fix the problem, read the system file with this version of
163 PSPP and then save a new copy of it.)
165 * pspp-convert, a new standalone utility for converting SPSS system
166 and portable files to other formats, is now included. The initial
167 version supports comma-separated value files as output format.
168 pspp-convert can also decrypt encrypted system files.
172 - zlib is now a required dependency. (Previously it was optional.)
174 Changes from 0.8.0 to 0.8.1:
180 * Changes to existing commands:
182 - CROSSTABS: The requirement that one expected count must be less than five
183 before Fishers Exact Test will be reported has been removed.
185 * PSPPIRE graphical user interface improvements:
187 - A new set of icons has been contributed.
189 - Syntax windows now parse syntax in "auto" mode, which in practice
190 should mean that both "batch" and "interactive" syntax now works,
191 instead of just "interactive" syntax.
193 - The variable pane of data windows now include a Role column.
197 - System files written by IBM SPSS 21 are now read without warnings.
199 - System files written by "VOXCO INTERVIEWER 4.3" are now read
202 - PSPPIRE should now more gracefully handle syntax files that contain
205 Changes from 0.6.2 to 0.8.0:
211 - DATAFILE ATTRIBUTES
218 - LOGISTIC REGRESSION
222 - PRESERVE and RESTORE
226 - SAVE TRANSLATE to CSV and tab-delimited files
228 - VARIABLE ATTRIBUTES
230 * Changes to existing commands:
232 - AUTORECODE has a new GROUP subcommand.
234 - CROSSTABS has been re-implemented to fix numerous bugs.
236 - EXAMINE: /MISSING=LISTWISE is now the default.
238 - DO REPEAT command has been reimplemented. Now, when DO REPEAT
239 contains an INCLUDE or INSERT command, substitutions are not
240 applied to the included file.
242 - FILE HANDLE has a new ENDS subcommand to select CR or CRLF new-lines.
244 - HOST has been updated to use more modern syntax.
246 - Most commands that work with data files now support a new
249 - MISSING VALUES can now assign missing values to long string
252 - ONEWAY: the POSTHOC subcommand is now implemented.
254 - The following new subcommands to NPAR TESTS have been implemented:
255 COCHRAN, FRIEDMAN, JONCKHEERE-TERPSTRA, KENDALL, KRUSKAL-WALLIS, MANN-WHITNEY,
256 MCNEMAR, SIGN, WILCOXON, and RUNS
258 - SET and SHOW no longer have ENDCMD, NULLINE, PROMPT, CPROMPT, and
259 DPROMPT subcommands. The defaults are now fixed values.
261 - SHOW now has a JOURNAL subcommand, to show the location of the
264 - VALUE LABELS can now assign value labels to long string
267 * Other language changes:
269 - The new DATASET commands replace the "scratch file" PSPP
270 extension, which is no longer supported.
272 - Strings may now include arbitrary Unicode code points specified
273 in hexadecimal, using the syntax U'hhhh'. For example, Unicode
274 code point U+1D11E, the musical G clef character, may be
275 expressed as U'1D11E'.
277 See the "Tokens" section in the PSPP manual for more information.
279 - In previous versions of PSPP, in a string expressed in
280 hexadecimal with X'hh' syntax, the hexadecimal digits expressed
281 bytes in the locale encoding. In this version of PSPP, X'hh'
282 syntax always expresses bytes in UTF-8 encoding.
284 See the "Tokens" section in the PSPP manual for more information.
286 * PSPPIRE graphical user interface improvements:
288 - Added support for non-ASCII characters in strings, labels and
291 - A "Split Window" function is available, which makes it easier to
292 see different parts of a large data file.
294 - Data files can now be opened by specifing their name as the first
295 argument. This means that on a properly configured desktop, double
296 clicking on an icon will open the file.
298 - Foreign formats, such as Gnumeric, OpenDocument and CSV can be imported
299 via using an "intelligent" application assistant dialog.
303 - The new "cairo" output driver supports output in PostScript, PDF,
304 and SVG formats. Its functionality is a superset of that of the
305 "postscript" driver, which has been removed. You must have Cairo
306 and Pango installed to build the "cairo" driver.
308 - Charts are now produced with Cairo and Pango, instead of libplot.
309 Without them, the new graphing features will not work. If you do
310 not have Cairo and Pango installed, you must run `configure' with
313 - The plain text output driver now properly supports multibyte UTF-8
314 characters, including double-width characters and combining
317 - Output to OpenDocument format is now supported.
319 - The HTML output is much improved.
321 * The "pspp" program has a new option --batch (or -b) that selects
322 "batch" syntax mode. In previous versions of PSPP this syntax mode
323 was the default. Now a new "auto" syntax mode is the default. In
324 "auto" mode, PSPP interprets most syntax files correctly regardless
325 of their intended syntax mode.
327 See the "Syntax Variants" section in the PSPP manual for more
330 * The "pspp" program has a new option --syntax-encoding that
331 specifies the encoding for syntax files listed on the command line,
332 as well as the default encoding for syntax files included with
333 INCLUDE or INSERT. The default is to accept the system locale
334 encoding, UTF-8, UTF-16, or UTF-32, automatically detecting which
335 one the system file uses.
337 See the documentation for the INSERT command in the PSPP manual for
340 * Text data files that PRINT and WRITE creates now use the system
341 native line ends by default (CRLF on Windows, LF only elsewhere).
342 Use the new ENDS subcommand on FILE HANDLE to override the default.
344 * A new Perl module allows Perl programs to read and write PSPP
347 * A tutorial chapter has been added to the user manual.
349 Changes from 0.6.1 to 0.6.2:
353 - Dutch, thanks to Harry Thijssen.
355 - Brazilian Portuguese, thanks to Michel Boaventura.
357 Thanks for translations are also due to the coordinators at
358 translationproject.org.
360 * Statistical bug fixes:
362 - REGRESSION: Report correct standard error of the estimate (bug
365 - T-TEST: Report correct significance of paired sample T-test in
366 the common case (bug #26936) and corner cases. Thanks to Mike
367 Griffiths and Matej Cepl for reporting these bugs.
369 * Build fixes and changes:
371 - Fix build with GTK+ 2.17.4 and later.
373 - Make running "make" after running "configure" with different
374 settings reliably rebuild version.c.
376 - Cygwin and MinGW build fixes.
378 - Fixes for building with recent gnulib.
380 - The Makefile now honors two new variables, PSPP_LDFLAGS and
381 PSPPIRE_LDFLAGS, that affect linking of the PSPP and PSPPIRE
382 binaries, respectively. This makes building easier for some
385 - Fixes for "configure --enable-relocatable" (bug #25508).
387 * Data file bug fixes and changes:
389 - Fix reading text data files that contain a mix of white space
390 and commas. Now "a ,b" is treated as two fields containing "a"
391 and "b"; previously it was treated as three, with an empty field
394 - Fix writing corrupted .sav files on Windows.
396 - Fix writing variable labels longer than 252 bytes to save files.
397 Thanks to Robert Westlund for reporting this bug.
399 - Fix writing corrupted .por files (bug #26034).
401 - Fix reading .por files whose initial lines are not padded out
402 with spaces as expected.
404 - PSPP will no longer issue warnings about some .sav file records
405 or values that it does not understand. These warnings were
406 harmless, but needlessly alarmed some users.
408 - Fix crash reading empty string fields from PostgreSQL databases.
410 * Bug fixes that affect PSPP and PSPPIRE:
412 - Users may now control precision of output statistics. Instead
413 of hard coding the width and decimals of output numbers, respect
414 the default format in most instances. Counts are now normally
415 displayed with the format of the weight variable, if any.
417 - Fix crash when an INSERT command specifies the name of a file
418 that does not exist (bug #24569).
420 - Fix crash when CROSSTABS specifies a long-string variable (bugs
423 - Fix crash drawing pie charts with many segments.
425 - Fix crash when NUMERIC specifies an invalid format.
427 * PSPPIRE bug fixes and changes:
429 - On Windows, write the output file to the user's home directory
430 instead of the current directory, to better match user
433 - Some data editor fixes.
437 - Fix typo in BINOMIAL section of user manual (bug #25892).
439 Changes from 0.6.0 to 0.6.1:
441 * Statistical bug fixes:
443 - Report correct standardized regression coefficients in linear
444 regression output (bug #23567).
446 * Bug fixes that affect PSPP and PSPPIRE:
448 - Avoid crash with pie charts (bug #24014).
450 - Don't append % to count totals (bug #24003).
452 - Don't crash on bad input (bug #24031).
454 - Don't crash if "end data." is not left aligned (bug #24115).
456 - Change default workspace value to 64 MB, to avoid unnecessary
457 disk accesses on modern machines.
461 - Add ".sav" or ".por" suffix to filename when saving with Save_As
464 - Make it possible to reopen the output window on Windows (bug
467 - A POSIX regular expression library is now included and used
468 automatically if the host does not have one or has one that is
471 * Build fixes and changes:
473 - Work around bug in GSL that prevented build with recent GCC
474 versions without manually adding -fgnu89-inline to CFLAGS.
476 - Also warn about missing prerequisites as we encounter them (bug
479 - Distribute necessary files to allow users working from the
480 distributed tarball to configure with --enable-gui-tools.
482 - Append $(EXEEXT_FOR_BUILD) to output file name when building
483 q2c, fixing build problems on Windows.
485 - GSL 1.8 or later is now required.
487 - Build errors with --enable-relocatable were fixed.
489 * The German translations were removed, since native German speakers
490 found them too poor to be useful.
492 Changes from 0.4.0 to 0.6.0:
494 * The PSPP license is now version 3 or later of the GNU General
495 Public License. Previously, it was version 2 or later.
497 * PSPP now has a graphical interface, called PSPPIRE. This
498 interface allows you to enter data and variable definitions
499 interactively. Commands may be executed in syntax form, or by
500 using the interactive dialog boxes available from the dropdown
503 * A few sample syntax files are now included in the `examples'
506 * Numerous major and minor bugs have been fixed.
510 * The INSTALL file now reflects the details of how to install
511 PSPP. It is a tailored version of the generic installation
512 instructions, instead of a verbatim copy.
514 * iconv, which is ordinarily installed as part of a Unix-like
515 system, is now required. If you don't have it already, you can
516 install GNU libiconv (http://www.gnu.org/software/libiconv/).
518 * libxml2 and zlib are new optional dependencies. They are
519 required to use PSPP's support for reading Gnumeric files.
521 Statistical procedure changes:
523 * REGRESSION is a new procedure for fitting linear models to data
524 via least-squares estimation.
526 * NPAR TESTS is a new procedure for non-parametric tests. In this
527 release, it supports binomial and chi-square tests.
529 * RANK is a new procedure to rank variables. It supports numerous
532 * FREQUENCIES can now output histograms and pie charts. These
533 features were present in earlier releases, but not documented.
535 User interface changes:
537 * In many situations where PSPP once terminated with a fatal
538 error, PSPP now recovers and continues execution.
540 * PSPP is now able to start up and run even if it cannot find its
543 * Journaling of interactive commands to a disk file is now
544 implemented. By default, journaling is enabled, to a file named
545 `pspp.jnl' in the current directory. SET JOURNAL may be used to
548 * The use of `+' between syntax file names on the command line to
549 prevent the dictionary from being cleared between their
550 executions is no longer supported. All syntax files are now
551 executed as if `+' had been specified.
553 * The -d/--define and -u/--undef command line options are no
554 longer supported. Instead, use /usr/bin/env or shell primitives
555 to define or clear environment variables before invoking PSPP.
557 * If a syntax file named named `rc' is found in a configuration
558 directory (such as $HOME/.pspp), it is executed before any
559 syntax file specified on the command line. The -r or
560 --no-statrc command line option may be used to disable this
565 * Output configuration options have changed. Please refer to the
566 manual for a full description of the available options.
568 In consequence, you will need to reinstall your "devices" file.
569 "make install" will do this for you.
571 * Most error messages are now written to PSPP output files by
572 default. SET ERROR can be used to disable this behavior.
574 * When invoked interactively, PSPP now by default produces output
575 on the terminal, piping it through the "more" program.
576 Previously, by default output was written only to file
577 pspp.list. On most terminals, the page length used for output
578 automatically adapts to the terminal size, even if the terminal
583 - This driver now supports charts in output. Charts are written
584 as separate files that the main output file refers to. By
585 default, charts are written in PNG format to files named
586 pspp-1.png, pspp-2.png, and so on.
588 - Configurations are provided that use VT100 (and xterm)
589 line-drawing characters in tables. The option "-o list-vt100"
590 requests use of this device for output to pspp.list.
594 - The default paper size is now determined using the PAPERSIZE
595 environment variable, or the LC_PAPER locale category on
596 systems that support it. If these are not set, the default is
597 now A4, instead of US letter. To make US letter the default,
598 set PAPERSIZE to "letter" in your environment.
600 - Font metrics are now read from AFM files, instead of
601 Groff-format metrics files. PostScript fonts can now be
604 In consequence, you will need to install an AFM file for each
605 font used in PostScript output. "make install" will install
606 AFM files for the standard PostScript fonts, including the
607 ones that the PostScript driver uses by default.
609 - Standard paper sizes no longer need to be specified through a
610 configuration file. The "papersize" configuration file is no
611 longer needed, or supported.
613 - The PostScript prologue is no longer obtained from the
614 "ps-prologue" configuration file. This configuration file is
615 no longer needed, or supported.
619 - The HTML prologue is no longer obtained from the
620 "html-prologue" configuration file. This configuration file
621 is no longer needed, or supported.
623 Command language changes:
625 * The following commands are new:
627 - GET DATA, which currently supports reading Gnumeric files and
628 text data files. It will be extended later to read other
629 types of foreign data.
631 - CD, to change the current directory.
633 - INSERT, to execute a syntax file.
635 - DELETE VARIABLES, to remove variables from the active file
638 - ADD DOCUMENT, to add text to active file documents.
640 - CLOSE FILE HANDLE (a PSPP extension; see below).
642 - XEXPORT, a PSPP extension that is a transformation equivalent
645 * The following functions for transformation expressions are new:
647 - DATEDIFF, for computing the difference of two dates.
649 - DATESUM, for advancing a date by a specified duration.
651 - VALUELABEL, to obtain the value label for a value.
653 * PSPP now supports very long string variables (over 255 bytes
656 * MATCH FILES now supports the FIRST and LAST subcommands.
658 * Previous versions of PSPP prohibited using commands to both read and
659 write a single file at the same time. Now, PSPP allows this, and
660 the new version of the file atomically replaces the old version.
662 * The following commands are no longer available. They will be
663 re-implemented in a later release:
665 - CLEAR TRANSFORMATIONS
671 * The PROCESS IF command, which was deprecated, has been removed.
672 You may replace any usage of it by SELECT IF following
673 TEMPORARY, which has the same effect.
675 * The output format for variables created by VECTOR may now be
676 specified as part of the VECTOR syntax.
678 "Scratch files", a new PSPP extension:
680 A scratch file, like a system file, consists of a dictionary and
681 any number of cases. Small scratch files are stored in memory;
682 one that grows too large is written to disk. By default, any file
683 handle whose name begins with # is assumed to refer to a scratch
686 Scratch files can be used just about anywhere a system or portable
687 file can be used. Also, portable files are now allowed in most
688 places that system files were allowed in previous PSPP version.
690 A new CLOSE FILE HANDLE command allows the storage associated with
691 scratch files to be freed. It also allows file handles to be
692 reassigned to new files.
694 For more information on scratch files, refer to the "File Handles"
695 section in the PSPP manual. For specifics of what commands now
696 allow what kinds of files to be specified, refer to the
697 documentation on those particular commands.
701 * Binary formats and IBM/360 formats, including ASCII/EBCDIC
702 translation, are now supported. Use FILE HANDLE to specify the
703 format of these files.
705 * Little-endian, big-endian, and VAX-endian formats are now
706 supported for integer binary formats when reading and writing
707 data files. The new RIB and WIB subcommands on the SET command
708 control endianness of integer data. The default is the host's
711 * IEEE 754, VAX, and IBM hexadecimal formats are now supported for
712 floating point binary formats when reading and writing data
713 files. The new RRB and WRB subcommands on the SET command
714 control the floating point format. The default is the host's
715 native floating point format.
717 * DATA LIST now supports the SKIP subcommand, to skip records at
718 the beginning of a file. For compatibility, DATA LIST now
719 treats N format as F format for FREE and LIST format input.
721 * The SAVE and XSAVE commands now support the UNSELECTED,
722 PERMISSIONS, NAMES, and MAP subcommands.
724 * The EXPORT command has been re-implemented to obtain better
725 results. Support for the UNSELECTED, DIGITS, and TYPE
726 subcommands has been added.
728 * For compatibility, PRINT now inserts a space at the beginning of
729 every output line, even lines that would otherwise be blank,
730 when OUTFILE is specified. (The behavior of WRITE is
733 * For compatibility, PRINT EJECT now inserts the digit `1' at the
734 beginning of each line that should begin a new page.
736 * For compatibility, WRITE now outputs the system-missing value as
737 a field filled with spaces. Binary formats are an exception.
738 (The behavior of PRINT is unchanged.)
742 * Input and output format descriptions have been rewritten. They
743 now precisely describe what is accepted on input and written on
746 * The descriptions of the PSPP system and portable file formats
747 have been extensively revised and improved.
749 For developers, the build system now requires Autoconf 2.60 and
752 Changes from 0.3.0 to 0.4.0:
754 Changes in build dependencies:
756 * The GNU Scientific Library (libgsl), version 1.6 or later, is
759 * libplot from GNU plotutils is optional. Without it, the new
760 graphing features will not work. If you do not have it
761 installed, you must run `configure' with --without-libplot.
763 * libgmp2 is no longer a dependency.
765 Newly implemented commands and statistical features:
767 * EXAMINE, including its graphing features.
769 * FREQUENCIES now supports percentiles.
777 * SORT CASES now sorts stably, that is, two cases with equal sort
778 criteria will be in the same relative order before and after the
781 * T-TEST (re-written).
783 * DATE and USE. These commands are parsed but otherwise ignored,
784 to enhance compatibility with certain command files that invoke
787 * VARIABLE WIDTH, VARIABLE ALIGNMENT, and VARIABLE LEVEL. These
788 currently have no effect on PSPP output, but their values are
789 written to and read from system files and thus may affect
790 third-party software.
792 * SET EPOCH implemented.
794 * DATA LIST FREE and DATA LIST LIST now support arbitrary field
797 * FILE HANDLE now supports custom tab widths.
799 Long variable names (and other identifiers) are now supported. Up
800 to the first 64 bytes of each identifier is significant. PSPP now
801 reads and writes system files compatible with SPSS version 12.
803 New --algorithm and --syntax command line options allow
804 SPSS-compatible or enhanced modes to be selected.
806 Support for transformation expressions has been rewritten and
807 significantly improved. Refer to the manual for details.
809 Calculation of moments (mean, standard deviation, kurtosis,
810 skewness) has been rewritten and should now be more accurate. In
811 --algorithm=enhanced mode moments may be more accurate than SPSS in
814 Numerous bugs have been fixed, too many to mention here. Many new
815 tests have been added, leading to the discovery and fixing of many
818 The ASCII output driver can now squeeze multiple blank lines into
821 Much of the code has been rewritten and refactored. It is now much
824 The FILE TYPE and REPEATING DATA commands have been disabled for
825 this release because their implementations were deemed too buggy to
826 be useful. They will be fixed and replaced in a future release.
828 New pspp-mode for Emacs (in pspp-mode.el).
830 Added rudimentary command-line completion for interactive input.
832 lib/julcal and lib/dcdflib are no longer used, so they have been
835 For developers, the build system now requires Autoconf 2.58 and
836 Automake 1.7. The included gettext has been updated to version
839 Some reports state that Texinfo 4.8, the latest version, may be
840 necessary to successfully format the documentation on some systems.
842 Version 0.3.0 changes since 0.2.3:
846 * Using alphanumeric variables in functions under AGGREGATE
849 * Under certain circumstances, the final case would be omitted
850 from the results of an AGGREGATE operation. Fixed.
852 * Undefined behavior was invoked by referencing a freed pointer
853 under certain circumstances. Fixed.
855 * A wrong record size was displayed when paging the active file to
858 * Not having enough temporary space for sorting caused a core
861 * Syntax errors in function descriptions on AGGREGATE caused core
864 * A null pointer was dereferenced, causing a core dump, when
865 PERCENTILES was specified on FREQUENCIES. This fixes the
866 problem, but PSPP still doesn't calculate percentiles.
868 * SORT always sorted in ascending order. Fixed.
870 * Some minor memory leaks in the expression parser were removed.
872 * Many assertions fixed for strict ANSI C compliance.
876 * SET ECHO ON now implemented, but turned off by default.
878 * PRINT specifier supported on END REPEAT.
882 * System libgmp2 library is used if installed instead of
883 unconditionally using the included libgmp2 subset.
885 * Extensive code cleanup, which continues.
887 * Added CORRELATIONS command parser, but not implemented.
889 Version 0.2.3 changes since 0.2.2:
893 * SPLIT FILE with a string variable caused a core dump. Fixed.
895 * Nested INCLUDEs didn't work. Fixed.
897 * The MATCH FILES procedure set the values of variables not present
898 to 0. It should have been SYSMIS. This is now fixed.
900 * The REMARK command was too aggressive about skipping lines. It
901 didn't like being the last command in a file.
903 * Comment parsing wasn't consistent with the rest of the code in its
904 idea of where one command ends and another starts. This meant
905 that sometimes commands would be mysteriously ignored. Thanks to
906 Dr. Dirk Melcher <BZN-mdksh@t-online.de> for reporting this bug.
908 * The TABLE subcommand on MATCH FILES worked only erratically at
909 best. This fixes it. Thanks to Dr. Dirk Melcher
910 <BZN-mdksh@t-online.de> for reporting this bug.
912 * VARIABLE LABELS rejected a slash before the first variable
913 specification, contradicting the documentation. Thanks to Walter
914 M. Gray <graywm@northernc.on.ca> for reporting this bug.
916 * Because of an incorrect optimization in memory allocation,
917 CROSSTABS sometimes segfaulted when asked to output multiple
918 tables. Thanks to Walter M. Gray <graywm@northernc.on.ca> for
921 * CROSSTABS didn't display value labels for column and row
922 variables. Thanks to Walter M. Gray <graywm@northernc.on.ca> for
925 * WRITE didn't write line ends. Fixed. Thanks to Dr. Dirk Melcher
926 <BZN-mdksh@t-online.de> for reporting this bug.
928 * The TABLE subcommand on MATCH FILES worked only erratically at
929 best. This fixes it. Thanks to Dr. Dirk Melcher
930 <BZN-mdksh@t-online.de> for reporting this bug.
932 * VARIABLE LABELS rejected a slash before the first variable
933 specification, contradicting the documentation. Thanks to Walter
934 M. Gray <graywm@northernc.on.ca> for reporting this bug.
936 * Because of an incorrect optimization in memory allocation,
937 CROSSTABS sometimes segfaulted when asked to output multiple
938 tables. Thanks to Walter M. Gray <graywm@northernc.on.ca> for
941 * CROSSTABS didn't display value labels for column and row
942 variables. Thanks to Walter M. Gray <graywm@northernc.on.ca> for
945 * WRITE didn't write line ends. Fixed. Thanks to Dr. Dirk Melcher
946 <BZN-mdksh@t-online.de> for reporting this bug.
948 * MATCH FILES corrupted memory and dumped core on some syntax
951 * MATCH FILES should set numeric values not available to the
952 system-missing value, not to 0. Thanks to Dr. Dirk Melcher
953 <BZN-mdksh@t-online.de> for reporting this bug.
955 * KEEP didn't work properly on the SAVE procedure. Fixed. Thanks
956 to Ralf Geschke <ralf@kuerbis.org> for reporting this bug.
960 * Some systems didn't like the way open_file was coded. Thanks to
961 Hankin <hankin@rogue.consultco.com> for pointing this out.
963 * The SAVE procedure didn't save long string variables properly.
964 Fixed by this patch. Thanks to Hankin
965 <hankin@rogue.consultco.com> for this patch.
967 * Minor documentation fixes for MATCH FILES.
969 Version 0.2.2 changes since 0.2.1:
973 * Fix behavior of PRINT SPACE for negative arguments.
975 * Fix reading some unusual system files.
977 * Fix LIST problems with very long variables. Thanks to Hankin
978 <hankin@dunno.com> for this bug report.
980 * Fix problems with some string format specifiers.
982 * Fix use of $CASENUM in expressions. Thanks to Dirk Melcher
983 <BZN-mdksh@t-online.de> for reporting this bug.
985 * Additional DATA LIST FREE and DATA LIST LIST fixes. Thanks to
986 Hankin <hankin@dunno.com> again on this one.
988 * Sometimes you may encounter a PSPP script that has to be
989 interpreted in interactive mode. Now you can use the -i flag to
992 * Warnings for egcs 1.1.1 cleaned up. (However you'll get lots of
993 `unused variable' warnings under gcc 2.7.2.3, fixing this will
998 * The files in gmp need the internationalization directory in
999 their include path. Thanks to OKUJI Yoshinori
1000 <okuji@kuicr.kyoto-u.ac.jp> for pointing this out.
1002 Version 0.2.1 changes since 0.2.0:
1006 * Remember to include examples/ directory in distribution :-)
1008 * Fixed gmp compile problems for some non-i386 architectures.
1009 Thanks to Hans Olav Eggestad <olav@jordforsk.nlh.no> and others
1012 * DATA LIST FREE and DATA LIST LIST parsing of input files is now
1013 matches the documented behavior exactly, and error messages are
1014 more helpful. Thanks to Mark H. Wood <mwood@IUPUI.Edu>.
1016 Version 0.2.0 changes since 0.1.0:
1018 Procedures now implemented:
1019 * CROSSTABS. Please see documentation for caveats.
1021 Transformations and utilities now implemented:
1024 * CLEAR TRANSFORMATIONS
1025 * DISPLAY (all subcommands).
1036 Support for input and output through pipes: "|command" and
1037 "command|" filenames; support for special filenames "-", "stdin",
1040 New command-line features:
1041 * New option --testing-mode: Invoke heuristics to assist testing.
1042 * New option --safer, -s: Don't allow certain unsafe operations.
1043 * New option --command=CMD, -c CMD: Perform literal command CMD.
1044 * rc file ~/.pspp/rc is executed before any other files.
1045 * Now multiple syntax files can be specified.
1047 Operator LAG is now implemented.
1049 Added missing FILE subcommand to REREAD.
1051 Table output manager completely rewritten.
1053 Device configuration file syntax changed. You will need to
1054 reinstall your `devices' file.
1056 New output driver for HTML.
1058 PostScript driver and prologue simplified.
1060 Many bugs fixed. General source-code cleanup.
1062 Added Texinfo documentation for:
1063 * PSPP system file format
1064 * PSPP portable file format
1065 * How to write input for q2c parser generator
1068 PSPP language is now fully documented. Please report any
1069 inaccuracies or omissions in the documentation.
1071 Changes for version 0.1.0:
1073 First public release. For changes from unreleased development
1074 versions, please see ONEWS.
1076 ----------------------------------------------------------------------
1077 Copyright information:
1079 Permission is granted to anyone to make or distribute verbatim
1080 copies of this document as received, in any medium, provided that
1081 the copyright notice and this permission notice are preserved, thus
1082 giving the recipient permission to redistribute in turn.
1084 Permission is granted to distribute modified versions of this
1085 document, or of portions of it, under the above conditions,
1086 provided also that they carry prominent notices stating who last
1090 version-control: never