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 graphic user interface now has a Graphs menu to access the GRAPH
19 * The GRAPH command now has a /BAR subcommand to draw barcharts.
21 * The graphical user interface uses Gtk+ version 3 instead of version 2.
22 Accordingly, it has a somewhat different look and feel.
24 * The pspp-convert utility can now decrypt encrypted syntax files.
25 The encrypted syntax file format is unacceptably insecure, so to
26 discourage its use PSPP and PSPPIRE do not directly read or write
29 * Bug fixes, including the following notable ones:
31 - The correlation coefficient in the paired samples t-test
32 procedure is now correctly calculated when presented with
35 - The ESCAPE subcommand has been removed from GET DATA /TYPE=TXT.
36 For compatibility, the behavior that ESCAPE enabled is now the
37 default and only supported behavior.
39 Changes from 0.8.4 to 0.8.5:
41 * The FREQUENCIES and CROSSTABS commands can now generate barcharts.
43 * The FACTOR command can now perform PROMAX rotations.
45 * SPSS/PC+ system files are now supported on GET and other commands
46 that read SPSS system files. The pspp-convert program can now read
47 SPSS/PC+ system files. Writing the obsolete SPSS/PC+ system file
48 format is not supported.
50 * SYSFILE INFO can now read SPSS/PC+ system files and SPSS portable
53 * FREQUENCIES: A bug was fixed where an assertion failure occured
54 when an empty dataset was presented.
56 * The GRAPH command is now available. Initially it supports
57 scatterplots and histograms.
59 * The RND operator in expressions now supports additional operands
60 for rounding to values other than integers and to indicate a level
61 of rounding fuzz. The default rounding fuzz may now be controlled
62 and displayed with SET FUZZBITS and SHOW FUZZBITS, respectively.
64 Changes from 0.8.3 to 0.8.4:
66 * Formatting of SYSFILE INFO output was made easier to read.
68 * Bug fixes, including the following notable ones:
70 - FREQUENCIES works properly for string variables. (This bug was
73 - CROSSTABS now correctly computes all of the measures that it
74 offers. Some measures have been removed because they were not
77 - The NPAR TESTS calculation of significance for the RUNS
78 subcommand has been corrected.
80 - Planned comparisons in ONEWAY ANOVA now correctly handle negative
83 - The COUNT command now correctly treats missing values as
86 - Conformance fixes to Open Document output format.
88 Changes from 0.8.2 to 0.8.3:
90 * Independent T-Tests displayed the standard error of the difference
91 and the confidence interval for the unequal variances case, where
92 the equal variances case should have been. This has been fixed.
94 * REGRESSION now recognises /STATISTICS=CI(x) which causes confidence
95 intervals for the coefficients to be printed.
97 * When DESCRIPTIVES calculates Z scores, it now omits cases filtered
98 by the current FILTER settings.
100 * PSPPIRE graphical user interface improvements:
102 - Dialog boxes with source variable lists can now choose the sort
103 order; right click and select from the popup menu.
105 - File|Open now allows an encoding to be selected for opening
108 - File|Display Data File Information|External File... now allows an
109 encoding to be selected.
111 - A problem with the Means dialog has been resolved (bug #41433).
113 - Several problems related to the input of spreadsheets have been
114 fixed (bug #41657, #41620
116 * System file related improvements:
118 - With ENCODING="DETECT", SYSFILE INFO can now help the user to
119 pick an encoding for reading a system file that does not identify
122 - SYSFILE INFO now accepts an ENCODING subcommand to specify the
123 character encoding of string data in the system file.
125 - Variable labels over 255 bytes long are now accepted without
126 truncation (bug #41863).
128 - System files that contain duplicate variable names may now be
129 read successfully (bug #41475).
131 Changes from 0.8.1 to 0.8.2:
133 * Charts are now rendered with colours from the Tango palette instead
134 of fully saturated primaries.
136 * Support for new system file variants:
138 - PSPP can now read and write ZCOMPRESSED system files, which
139 compress data much more effectively than older "compressed"
140 files. (The older format is still supported.)
142 - PSPP can now decrypt encrypted system files, using the new
143 pspp-convert utility. The encrypted system file format is
144 unacceptably insecure, so to discourage its use PSPP and PSPPIRE
145 do not directly read or write this format.
147 * Missing values for long string variables are now read from and
148 written to system files in an SPSS-compatible fashion.
150 (Earlier versions of PSPP that supported missing values for long
151 string variables wrote them to system files in an SPSS-incompatible
152 way. To fix the problem, read the system file with this version of
153 PSPP and then save a new copy of it.)
155 * pspp-convert, a new standalone utility for converting SPSS system
156 and portable files to other formats, is now included. The initial
157 version supports comma-separated value files as output format.
158 pspp-convert can also decrypt encrypted system files.
162 - zlib is now a required dependency. (Previously it was optional.)
164 Changes from 0.8.0 to 0.8.1:
170 * Changes to existing commands:
172 - CROSSTABS: The requirement that one expected count must be less than five
173 before Fishers Exact Test will be reported has been removed.
175 * PSPPIRE graphical user interface improvements:
177 - A new set of icons has been contributed.
179 - Syntax windows now parse syntax in "auto" mode, which in practice
180 should mean that both "batch" and "interactive" syntax now works,
181 instead of just "interactive" syntax.
183 - The variable pane of data windows now include a Role column.
187 - System files written by IBM SPSS 21 are now read without warnings.
189 - System files written by "VOXCO INTERVIEWER 4.3" are now read
192 - PSPPIRE should now more gracefully handle syntax files that contain
195 Changes from 0.6.2 to 0.8.0:
201 - DATAFILE ATTRIBUTES
208 - LOGISTIC REGRESSION
212 - PRESERVE and RESTORE
216 - SAVE TRANSLATE to CSV and tab-delimited files
218 - VARIABLE ATTRIBUTES
220 * Changes to existing commands:
222 - AUTORECODE has a new GROUP subcommand.
224 - CROSSTABS has been re-implemented to fix numerous bugs.
226 - EXAMINE: /MISSING=LISTWISE is now the default.
228 - DO REPEAT command has been reimplemented. Now, when DO REPEAT
229 contains an INCLUDE or INSERT command, substitutions are not
230 applied to the included file.
232 - FILE HANDLE has a new ENDS subcommand to select CR or CRLF new-lines.
234 - HOST has been updated to use more modern syntax.
236 - Most commands that work with data files now support a new
239 - MISSING VALUES can now assign missing values to long string
242 - ONEWAY: the POSTHOC subcommand is now implemented.
244 - The following new subcommands to NPAR TESTS have been implemented:
245 COCHRAN, FRIEDMAN, JONCKHEERE-TERPSTRA, KENDALL, KRUSKAL-WALLIS, MANN-WHITNEY,
246 MCNEMAR, SIGN, WILCOXON, and RUNS
248 - SET and SHOW no longer have ENDCMD, NULLINE, PROMPT, CPROMPT, and
249 DPROMPT subcommands. The defaults are now fixed values.
251 - SHOW now has a JOURNAL subcommand, to show the location of the
254 - VALUE LABELS can now assign value labels to long string
257 * Other language changes:
259 - The new DATASET commands replace the "scratch file" PSPP
260 extension, which is no longer supported.
262 - Strings may now include arbitrary Unicode code points specified
263 in hexadecimal, using the syntax U'hhhh'. For example, Unicode
264 code point U+1D11E, the musical G clef character, may be
265 expressed as U'1D11E'.
267 See the "Tokens" section in the PSPP manual for more information.
269 - In previous versions of PSPP, in a string expressed in
270 hexadecimal with X'hh' syntax, the hexadecimal digits expressed
271 bytes in the locale encoding. In this version of PSPP, X'hh'
272 syntax always expresses bytes in UTF-8 encoding.
274 See the "Tokens" section in the PSPP manual for more information.
276 * PSPPIRE graphical user interface improvements:
278 - Added support for non-ASCII characters in strings, labels and
281 - A "Split Window" function is available, which makes it easier to
282 see different parts of a large data file.
284 - Data files can now be opened by specifing their name as the first
285 argument. This means that on a properly configured desktop, double
286 clicking on an icon will open the file.
288 - Foreign formats, such as Gnumeric, OpenDocument and CSV can be imported
289 via using an "intelligent" application assistant dialog.
293 - The new "cairo" output driver supports output in PostScript, PDF,
294 and SVG formats. Its functionality is a superset of that of the
295 "postscript" driver, which has been removed. You must have Cairo
296 and Pango installed to build the "cairo" driver.
298 - Charts are now produced with Cairo and Pango, instead of libplot.
299 Without them, the new graphing features will not work. If you do
300 not have Cairo and Pango installed, you must run `configure' with
303 - The plain text output driver now properly supports multibyte UTF-8
304 characters, including double-width characters and combining
307 - Output to OpenDocument format is now supported.
309 - The HTML output is much improved.
311 * The "pspp" program has a new option --batch (or -b) that selects
312 "batch" syntax mode. In previous versions of PSPP this syntax mode
313 was the default. Now a new "auto" syntax mode is the default. In
314 "auto" mode, PSPP interprets most syntax files correctly regardless
315 of their intended syntax mode.
317 See the "Syntax Variants" section in the PSPP manual for more
320 * The "pspp" program has a new option --syntax-encoding that
321 specifies the encoding for syntax files listed on the command line,
322 as well as the default encoding for syntax files included with
323 INCLUDE or INSERT. The default is to accept the system locale
324 encoding, UTF-8, UTF-16, or UTF-32, automatically detecting which
325 one the system file uses.
327 See the documentation for the INSERT command in the PSPP manual for
330 * Text data files that PRINT and WRITE creates now use the system
331 native line ends by default (CRLF on Windows, LF only elsewhere).
332 Use the new ENDS subcommand on FILE HANDLE to override the default.
334 * A new Perl module allows Perl programs to read and write PSPP
337 * A tutorial chapter has been added to the user manual.
339 Changes from 0.6.1 to 0.6.2:
343 - Dutch, thanks to Harry Thijssen.
345 - Brazilian Portuguese, thanks to Michel Boaventura.
347 Thanks for translations are also due to the coordinators at
348 translationproject.org.
350 * Statistical bug fixes:
352 - REGRESSION: Report correct standard error of the estimate (bug
355 - T-TEST: Report correct significance of paired sample T-test in
356 the common case (bug #26936) and corner cases. Thanks to Mike
357 Griffiths and Matej Cepl for reporting these bugs.
359 * Build fixes and changes:
361 - Fix build with GTK+ 2.17.4 and later.
363 - Make running "make" after running "configure" with different
364 settings reliably rebuild version.c.
366 - Cygwin and MinGW build fixes.
368 - Fixes for building with recent gnulib.
370 - The Makefile now honors two new variables, PSPP_LDFLAGS and
371 PSPPIRE_LDFLAGS, that affect linking of the PSPP and PSPPIRE
372 binaries, respectively. This makes building easier for some
375 - Fixes for "configure --enable-relocatable" (bug #25508).
377 * Data file bug fixes and changes:
379 - Fix reading text data files that contain a mix of white space
380 and commas. Now "a ,b" is treated as two fields containing "a"
381 and "b"; previously it was treated as three, with an empty field
384 - Fix writing corrupted .sav files on Windows.
386 - Fix writing variable labels longer than 252 bytes to save files.
387 Thanks to Robert Westlund for reporting this bug.
389 - Fix writing corrupted .por files (bug #26034).
391 - Fix reading .por files whose initial lines are not padded out
392 with spaces as expected.
394 - PSPP will no longer issue warnings about some .sav file records
395 or values that it does not understand. These warnings were
396 harmless, but needlessly alarmed some users.
398 - Fix crash reading empty string fields from PostgreSQL databases.
400 * Bug fixes that affect PSPP and PSPPIRE:
402 - Users may now control precision of output statistics. Instead
403 of hard coding the width and decimals of output numbers, respect
404 the default format in most instances. Counts are now normally
405 displayed with the format of the weight variable, if any.
407 - Fix crash when an INSERT command specifies the name of a file
408 that does not exist (bug #24569).
410 - Fix crash when CROSSTABS specifies a long-string variable (bugs
413 - Fix crash drawing pie charts with many segments.
415 - Fix crash when NUMERIC specifies an invalid format.
417 * PSPPIRE bug fixes and changes:
419 - On Windows, write the output file to the user's home directory
420 instead of the current directory, to better match user
423 - Some data editor fixes.
427 - Fix typo in BINOMIAL section of user manual (bug #25892).
429 Changes from 0.6.0 to 0.6.1:
431 * Statistical bug fixes:
433 - Report correct standardized regression coefficients in linear
434 regression output (bug #23567).
436 * Bug fixes that affect PSPP and PSPPIRE:
438 - Avoid crash with pie charts (bug #24014).
440 - Don't append % to count totals (bug #24003).
442 - Don't crash on bad input (bug #24031).
444 - Don't crash if "end data." is not left aligned (bug #24115).
446 - Change default workspace value to 64 MB, to avoid unnecessary
447 disk accesses on modern machines.
451 - Add ".sav" or ".por" suffix to filename when saving with Save_As
454 - Make it possible to reopen the output window on Windows (bug
457 - A POSIX regular expression library is now included and used
458 automatically if the host does not have one or has one that is
461 * Build fixes and changes:
463 - Work around bug in GSL that prevented build with recent GCC
464 versions without manually adding -fgnu89-inline to CFLAGS.
466 - Also warn about missing prerequisites as we encounter them (bug
469 - Distribute necessary files to allow users working from the
470 distributed tarball to configure with --enable-gui-tools.
472 - Append $(EXEEXT_FOR_BUILD) to output file name when building
473 q2c, fixing build problems on Windows.
475 - GSL 1.8 or later is now required.
477 - Build errors with --enable-relocatable were fixed.
479 * The German translations were removed, since native German speakers
480 found them too poor to be useful.
482 Changes from 0.4.0 to 0.6.0:
484 * The PSPP license is now version 3 or later of the GNU General
485 Public License. Previously, it was version 2 or later.
487 * PSPP now has a graphical interface, called PSPPIRE. This
488 interface allows you to enter data and variable definitions
489 interactively. Commands may be executed in syntax form, or by
490 using the interactive dialog boxes available from the dropdown
493 * A few sample syntax files are now included in the `examples'
496 * Numerous major and minor bugs have been fixed.
500 * The INSTALL file now reflects the details of how to install
501 PSPP. It is a tailored version of the generic installation
502 instructions, instead of a verbatim copy.
504 * iconv, which is ordinarily installed as part of a Unix-like
505 system, is now required. If you don't have it already, you can
506 install GNU libiconv (http://www.gnu.org/software/libiconv/).
508 * libxml2 and zlib are new optional dependencies. They are
509 required to use PSPP's support for reading Gnumeric files.
511 Statistical procedure changes:
513 * REGRESSION is a new procedure for fitting linear models to data
514 via least-squares estimation.
516 * NPAR TESTS is a new procedure for non-parametric tests. In this
517 release, it supports binomial and chi-square tests.
519 * RANK is a new procedure to rank variables. It supports numerous
522 * FREQUENCIES can now output histograms and pie charts. These
523 features were present in earlier releases, but not documented.
525 User interface changes:
527 * In many situations where PSPP once terminated with a fatal
528 error, PSPP now recovers and continues execution.
530 * PSPP is now able to start up and run even if it cannot find its
533 * Journaling of interactive commands to a disk file is now
534 implemented. By default, journaling is enabled, to a file named
535 `pspp.jnl' in the current directory. SET JOURNAL may be used to
538 * The use of `+' between syntax file names on the command line to
539 prevent the dictionary from being cleared between their
540 executions is no longer supported. All syntax files are now
541 executed as if `+' had been specified.
543 * The -d/--define and -u/--undef command line options are no
544 longer supported. Instead, use /usr/bin/env or shell primitives
545 to define or clear environment variables before invoking PSPP.
547 * If a syntax file named named `rc' is found in a configuration
548 directory (such as $HOME/.pspp), it is executed before any
549 syntax file specified on the command line. The -r or
550 --no-statrc command line option may be used to disable this
555 * Output configuration options have changed. Please refer to the
556 manual for a full description of the available options.
558 In consequence, you will need to reinstall your "devices" file.
559 "make install" will do this for you.
561 * Most error messages are now written to PSPP output files by
562 default. SET ERROR can be used to disable this behavior.
564 * When invoked interactively, PSPP now by default produces output
565 on the terminal, piping it through the "more" program.
566 Previously, by default output was written only to file
567 pspp.list. On most terminals, the page length used for output
568 automatically adapts to the terminal size, even if the terminal
573 - This driver now supports charts in output. Charts are written
574 as separate files that the main output file refers to. By
575 default, charts are written in PNG format to files named
576 pspp-1.png, pspp-2.png, and so on.
578 - Configurations are provided that use VT100 (and xterm)
579 line-drawing characters in tables. The option "-o list-vt100"
580 requests use of this device for output to pspp.list.
584 - The default paper size is now determined using the PAPERSIZE
585 environment variable, or the LC_PAPER locale category on
586 systems that support it. If these are not set, the default is
587 now A4, instead of US letter. To make US letter the default,
588 set PAPERSIZE to "letter" in your environment.
590 - Font metrics are now read from AFM files, instead of
591 Groff-format metrics files. PostScript fonts can now be
594 In consequence, you will need to install an AFM file for each
595 font used in PostScript output. "make install" will install
596 AFM files for the standard PostScript fonts, including the
597 ones that the PostScript driver uses by default.
599 - Standard paper sizes no longer need to be specified through a
600 configuration file. The "papersize" configuration file is no
601 longer needed, or supported.
603 - The PostScript prologue is no longer obtained from the
604 "ps-prologue" configuration file. This configuration file is
605 no longer needed, or supported.
609 - The HTML prologue is no longer obtained from the
610 "html-prologue" configuration file. This configuration file
611 is no longer needed, or supported.
613 Command language changes:
615 * The following commands are new:
617 - GET DATA, which currently supports reading Gnumeric files and
618 text data files. It will be extended later to read other
619 types of foreign data.
621 - CD, to change the current directory.
623 - INSERT, to execute a syntax file.
625 - DELETE VARIABLES, to remove variables from the active file
628 - ADD DOCUMENT, to add text to active file documents.
630 - CLOSE FILE HANDLE (a PSPP extension; see below).
632 - XEXPORT, a PSPP extension that is a transformation equivalent
635 * The following functions for transformation expressions are new:
637 - DATEDIFF, for computing the difference of two dates.
639 - DATESUM, for advancing a date by a specified duration.
641 - VALUELABEL, to obtain the value label for a value.
643 * PSPP now supports very long string variables (over 255 bytes
646 * MATCH FILES now supports the FIRST and LAST subcommands.
648 * Previous versions of PSPP prohibited using commands to both read and
649 write a single file at the same time. Now, PSPP allows this, and
650 the new version of the file atomically replaces the old version.
652 * The following commands are no longer available. They will be
653 re-implemented in a later release:
655 - CLEAR TRANSFORMATIONS
661 * The PROCESS IF command, which was deprecated, has been removed.
662 You may replace any usage of it by SELECT IF following
663 TEMPORARY, which has the same effect.
665 * The output format for variables created by VECTOR may now be
666 specified as part of the VECTOR syntax.
668 "Scratch files", a new PSPP extension:
670 A scratch file, like a system file, consists of a dictionary and
671 any number of cases. Small scratch files are stored in memory;
672 one that grows too large is written to disk. By default, any file
673 handle whose name begins with # is assumed to refer to a scratch
676 Scratch files can be used just about anywhere a system or portable
677 file can be used. Also, portable files are now allowed in most
678 places that system files were allowed in previous PSPP version.
680 A new CLOSE FILE HANDLE command allows the storage associated with
681 scratch files to be freed. It also allows file handles to be
682 reassigned to new files.
684 For more information on scratch files, refer to the "File Handles"
685 section in the PSPP manual. For specifics of what commands now
686 allow what kinds of files to be specified, refer to the
687 documentation on those particular commands.
691 * Binary formats and IBM/360 formats, including ASCII/EBCDIC
692 translation, are now supported. Use FILE HANDLE to specify the
693 format of these files.
695 * Little-endian, big-endian, and VAX-endian formats are now
696 supported for integer binary formats when reading and writing
697 data files. The new RIB and WIB subcommands on the SET command
698 control endianness of integer data. The default is the host's
701 * IEEE 754, VAX, and IBM hexadecimal formats are now supported for
702 floating point binary formats when reading and writing data
703 files. The new RRB and WRB subcommands on the SET command
704 control the floating point format. The default is the host's
705 native floating point format.
707 * DATA LIST now supports the SKIP subcommand, to skip records at
708 the beginning of a file. For compatibility, DATA LIST now
709 treats N format as F format for FREE and LIST format input.
711 * The SAVE and XSAVE commands now support the UNSELECTED,
712 PERMISSIONS, NAMES, and MAP subcommands.
714 * The EXPORT command has been re-implemented to obtain better
715 results. Support for the UNSELECTED, DIGITS, and TYPE
716 subcommands has been added.
718 * For compatibility, PRINT now inserts a space at the beginning of
719 every output line, even lines that would otherwise be blank,
720 when OUTFILE is specified. (The behavior of WRITE is
723 * For compatibility, PRINT EJECT now inserts the digit `1' at the
724 beginning of each line that should begin a new page.
726 * For compatibility, WRITE now outputs the system-missing value as
727 a field filled with spaces. Binary formats are an exception.
728 (The behavior of PRINT is unchanged.)
732 * Input and output format descriptions have been rewritten. They
733 now precisely describe what is accepted on input and written on
736 * The descriptions of the PSPP system and portable file formats
737 have been extensively revised and improved.
739 For developers, the build system now requires Autoconf 2.60 and
742 Changes from 0.3.0 to 0.4.0:
744 Changes in build dependencies:
746 * The GNU Scientific Library (libgsl), version 1.6 or later, is
749 * libplot from GNU plotutils is optional. Without it, the new
750 graphing features will not work. If you do not have it
751 installed, you must run `configure' with --without-libplot.
753 * libgmp2 is no longer a dependency.
755 Newly implemented commands and statistical features:
757 * EXAMINE, including its graphing features.
759 * FREQUENCIES now supports percentiles.
767 * SORT CASES now sorts stably, that is, two cases with equal sort
768 criteria will be in the same relative order before and after the
771 * T-TEST (re-written).
773 * DATE and USE. These commands are parsed but otherwise ignored,
774 to enhance compatibility with certain command files that invoke
777 * VARIABLE WIDTH, VARIABLE ALIGNMENT, and VARIABLE LEVEL. These
778 currently have no effect on PSPP output, but their values are
779 written to and read from system files and thus may affect
780 third-party software.
782 * SET EPOCH implemented.
784 * DATA LIST FREE and DATA LIST LIST now support arbitrary field
787 * FILE HANDLE now supports custom tab widths.
789 Long variable names (and other identifiers) are now supported. Up
790 to the first 64 bytes of each identifier is significant. PSPP now
791 reads and writes system files compatible with SPSS version 12.
793 New --algorithm and --syntax command line options allow
794 SPSS-compatible or enhanced modes to be selected.
796 Support for transformation expressions has been rewritten and
797 significantly improved. Refer to the manual for details.
799 Calculation of moments (mean, standard deviation, kurtosis,
800 skewness) has been rewritten and should now be more accurate. In
801 --algorithm=enhanced mode moments may be more accurate than SPSS in
804 Numerous bugs have been fixed, too many to mention here. Many new
805 tests have been added, leading to the discovery and fixing of many
808 The ASCII output driver can now squeeze multiple blank lines into
811 Much of the code has been rewritten and refactored. It is now much
814 The FILE TYPE and REPEATING DATA commands have been disabled for
815 this release because their implementations were deemed too buggy to
816 be useful. They will be fixed and replaced in a future release.
818 New pspp-mode for Emacs (in pspp-mode.el).
820 Added rudimentary command-line completion for interactive input.
822 lib/julcal and lib/dcdflib are no longer used, so they have been
825 For developers, the build system now requires Autoconf 2.58 and
826 Automake 1.7. The included gettext has been updated to version
829 Some reports state that Texinfo 4.8, the latest version, may be
830 necessary to successfully format the documentation on some systems.
832 Version 0.3.0 changes since 0.2.3:
836 * Using alphanumeric variables in functions under AGGREGATE
839 * Under certain circumstances, the final case would be omitted
840 from the results of an AGGREGATE operation. Fixed.
842 * Undefined behavior was invoked by referencing a freed pointer
843 under certain circumstances. Fixed.
845 * A wrong record size was displayed when paging the active file to
848 * Not having enough temporary space for sorting caused a core
851 * Syntax errors in function descriptions on AGGREGATE caused core
854 * A null pointer was dereferenced, causing a core dump, when
855 PERCENTILES was specified on FREQUENCIES. This fixes the
856 problem, but PSPP still doesn't calculate percentiles.
858 * SORT always sorted in ascending order. Fixed.
860 * Some minor memory leaks in the expression parser were removed.
862 * Many assertions fixed for strict ANSI C compliance.
866 * SET ECHO ON now implemented, but turned off by default.
868 * PRINT specifier supported on END REPEAT.
872 * System libgmp2 library is used if installed instead of
873 unconditionally using the included libgmp2 subset.
875 * Extensive code cleanup, which continues.
877 * Added CORRELATIONS command parser, but not implemented.
879 Version 0.2.3 changes since 0.2.2:
883 * SPLIT FILE with a string variable caused a core dump. Fixed.
885 * Nested INCLUDEs didn't work. Fixed.
887 * The MATCH FILES procedure set the values of variables not present
888 to 0. It should have been SYSMIS. This is now fixed.
890 * The REMARK command was too aggressive about skipping lines. It
891 didn't like being the last command in a file.
893 * Comment parsing wasn't consistent with the rest of the code in its
894 idea of where one command ends and another starts. This meant
895 that sometimes commands would be mysteriously ignored. Thanks to
896 Dr. Dirk Melcher <BZN-mdksh@t-online.de> for reporting this bug.
898 * The TABLE subcommand on MATCH FILES worked only erratically at
899 best. This fixes it. Thanks to Dr. Dirk Melcher
900 <BZN-mdksh@t-online.de> for reporting this bug.
902 * VARIABLE LABELS rejected a slash before the first variable
903 specification, contradicting the documentation. Thanks to Walter
904 M. Gray <graywm@northernc.on.ca> for reporting this bug.
906 * Because of an incorrect optimization in memory allocation,
907 CROSSTABS sometimes segfaulted when asked to output multiple
908 tables. Thanks to Walter M. Gray <graywm@northernc.on.ca> for
911 * CROSSTABS didn't display value labels for column and row
912 variables. Thanks to Walter M. Gray <graywm@northernc.on.ca> for
915 * WRITE didn't write line ends. Fixed. Thanks to Dr. Dirk Melcher
916 <BZN-mdksh@t-online.de> for reporting this bug.
918 * The TABLE subcommand on MATCH FILES worked only erratically at
919 best. This fixes it. Thanks to Dr. Dirk Melcher
920 <BZN-mdksh@t-online.de> for reporting this bug.
922 * VARIABLE LABELS rejected a slash before the first variable
923 specification, contradicting the documentation. Thanks to Walter
924 M. Gray <graywm@northernc.on.ca> for reporting this bug.
926 * Because of an incorrect optimization in memory allocation,
927 CROSSTABS sometimes segfaulted when asked to output multiple
928 tables. Thanks to Walter M. Gray <graywm@northernc.on.ca> for
931 * CROSSTABS didn't display value labels for column and row
932 variables. Thanks to Walter M. Gray <graywm@northernc.on.ca> for
935 * WRITE didn't write line ends. Fixed. Thanks to Dr. Dirk Melcher
936 <BZN-mdksh@t-online.de> for reporting this bug.
938 * MATCH FILES corrupted memory and dumped core on some syntax
941 * MATCH FILES should set numeric values not available to the
942 system-missing value, not to 0. Thanks to Dr. Dirk Melcher
943 <BZN-mdksh@t-online.de> for reporting this bug.
945 * KEEP didn't work properly on the SAVE procedure. Fixed. Thanks
946 to Ralf Geschke <ralf@kuerbis.org> for reporting this bug.
950 * Some systems didn't like the way open_file was coded. Thanks to
951 Hankin <hankin@rogue.consultco.com> for pointing this out.
953 * The SAVE procedure didn't save long string variables properly.
954 Fixed by this patch. Thanks to Hankin
955 <hankin@rogue.consultco.com> for this patch.
957 * Minor documentation fixes for MATCH FILES.
959 Version 0.2.2 changes since 0.2.1:
963 * Fix behavior of PRINT SPACE for negative arguments.
965 * Fix reading some unusual system files.
967 * Fix LIST problems with very long variables. Thanks to Hankin
968 <hankin@dunno.com> for this bug report.
970 * Fix problems with some string format specifiers.
972 * Fix use of $CASENUM in expressions. Thanks to Dirk Melcher
973 <BZN-mdksh@t-online.de> for reporting this bug.
975 * Additional DATA LIST FREE and DATA LIST LIST fixes. Thanks to
976 Hankin <hankin@dunno.com> again on this one.
978 * Sometimes you may encounter a PSPP script that has to be
979 interpreted in interactive mode. Now you can use the -i flag to
982 * Warnings for egcs 1.1.1 cleaned up. (However you'll get lots of
983 `unused variable' warnings under gcc 2.7.2.3, fixing this will
988 * The files in gmp need the internationalization directory in
989 their include path. Thanks to OKUJI Yoshinori
990 <okuji@kuicr.kyoto-u.ac.jp> for pointing this out.
992 Version 0.2.1 changes since 0.2.0:
996 * Remember to include examples/ directory in distribution :-)
998 * Fixed gmp compile problems for some non-i386 architectures.
999 Thanks to Hans Olav Eggestad <olav@jordforsk.nlh.no> and others
1002 * DATA LIST FREE and DATA LIST LIST parsing of input files is now
1003 matches the documented behavior exactly, and error messages are
1004 more helpful. Thanks to Mark H. Wood <mwood@IUPUI.Edu>.
1006 Version 0.2.0 changes since 0.1.0:
1008 Procedures now implemented:
1009 * CROSSTABS. Please see documentation for caveats.
1011 Transformations and utilities now implemented:
1014 * CLEAR TRANSFORMATIONS
1015 * DISPLAY (all subcommands).
1026 Support for input and output through pipes: "|command" and
1027 "command|" filenames; support for special filenames "-", "stdin",
1030 New command-line features:
1031 * New option --testing-mode: Invoke heuristics to assist testing.
1032 * New option --safer, -s: Don't allow certain unsafe operations.
1033 * New option --command=CMD, -c CMD: Perform literal command CMD.
1034 * rc file ~/.pspp/rc is executed before any other files.
1035 * Now multiple syntax files can be specified.
1037 Operator LAG is now implemented.
1039 Added missing FILE subcommand to REREAD.
1041 Table output manager completely rewritten.
1043 Device configuration file syntax changed. You will need to
1044 reinstall your `devices' file.
1046 New output driver for HTML.
1048 PostScript driver and prologue simplified.
1050 Many bugs fixed. General source-code cleanup.
1052 Added Texinfo documentation for:
1053 * PSPP system file format
1054 * PSPP portable file format
1055 * How to write input for q2c parser generator
1058 PSPP language is now fully documented. Please report any
1059 inaccuracies or omissions in the documentation.
1061 Changes for version 0.1.0:
1063 First public release. For changes from unreleased development
1064 versions, please see ONEWS.
1066 ----------------------------------------------------------------------
1067 Copyright information:
1069 Permission is granted to anyone to make or distribute verbatim
1070 copies of this document as received, in any medium, provided that
1071 the copyright notice and this permission notice are preserved, thus
1072 giving the recipient permission to redistribute in turn.
1074 Permission is granted to distribute modified versions of this
1075 document, or of portions of it, under the above conditions,
1076 provided also that they carry prominent notices stating who last
1080 version-control: never