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 graphical user interface uses Gtk+ version 3 instead of version 2.
17 Accordingly, it has a somewhat different look and feel.
19 * The pspp-convert utility can now decrypt encrypted syntax files.
20 The encrypted syntax file format is unacceptably insecure, so to
21 discourage its use PSPP and PSPPIRE do not directly read or write
24 * Bug fixes, including the following notable ones:
26 - The correlation coefficient in the paired samples t-test
27 procedure is now correctly calculated when presented with
30 - The ESCAPE subcommand has been removed from GET DATA /TYPE=TXT.
31 For compatibility, the behavior that ESCAPE enabled is now the
32 default and only supported behavior.
34 Changes from 0.8.4 to 0.8.5:
36 * The FREQUENCIES and CROSSTABS commands can now generate barcharts.
38 * The FACTOR command can now perform PROMAX rotations.
40 * SPSS/PC+ system files are now supported on GET and other commands
41 that read SPSS system files. The pspp-convert program can now read
42 SPSS/PC+ system files. Writing the obsolete SPSS/PC+ system file
43 format is not supported.
45 * SYSFILE INFO can now read SPSS/PC+ system files and SPSS portable
48 * FREQUENCIES: A bug was fixed where an assertion failure occured
49 when an empty dataset was presented.
51 * The GRAPH command is now available. Initially it supports
52 scatterplots and histograms.
54 * The RND operator in expressions now supports additional operands
55 for rounding to values other than integers and to indicate a level
56 of rounding fuzz. The default rounding fuzz may now be controlled
57 and displayed with SET FUZZBITS and SHOW FUZZBITS, respectively.
59 Changes from 0.8.3 to 0.8.4:
61 * Formatting of SYSFILE INFO output was made easier to read.
63 * Bug fixes, including the following notable ones:
65 - FREQUENCIES works properly for string variables. (This bug was
68 - CROSSTABS now correctly computes all of the measures that it
69 offers. Some measures have been removed because they were not
72 - The NPAR TESTS calculation of significance for the RUNS
73 subcommand has been corrected.
75 - Planned comparisons in ONEWAY ANOVA now correctly handle negative
78 - The COUNT command now correctly treats missing values as
81 - Conformance fixes to Open Document output format.
83 Changes from 0.8.2 to 0.8.3:
85 * Independent T-Tests displayed the standard error of the difference
86 and the confidence interval for the unequal variances case, where
87 the equal variances case should have been. This has been fixed.
89 * REGRESSION now recognises /STATISTICS=CI(x) which causes confidence
90 intervals for the coefficients to be printed.
92 * When DESCRIPTIVES calculates Z scores, it now omits cases filtered
93 by the current FILTER settings.
95 * PSPPIRE graphical user interface improvements:
97 - Dialog boxes with source variable lists can now choose the sort
98 order; right click and select from the popup menu.
100 - File|Open now allows an encoding to be selected for opening
103 - File|Display Data File Information|External File... now allows an
104 encoding to be selected.
106 - A problem with the Means dialog has been resolved (bug #41433).
108 - Several problems related to the input of spreadsheets have been
109 fixed (bug #41657, #41620
111 * System file related improvements:
113 - With ENCODING="DETECT", SYSFILE INFO can now help the user to
114 pick an encoding for reading a system file that does not identify
117 - SYSFILE INFO now accepts an ENCODING subcommand to specify the
118 character encoding of string data in the system file.
120 - Variable labels over 255 bytes long are now accepted without
121 truncation (bug #41863).
123 - System files that contain duplicate variable names may now be
124 read successfully (bug #41475).
126 Changes from 0.8.1 to 0.8.2:
128 * Charts are now rendered with colours from the Tango palette instead
129 of fully saturated primaries.
131 * Support for new system file variants:
133 - PSPP can now read and write ZCOMPRESSED system files, which
134 compress data much more effectively than older "compressed"
135 files. (The older format is still supported.)
137 - PSPP can now decrypt encrypted system files, using the new
138 pspp-convert utility. The encrypted system file format is
139 unacceptably insecure, so to discourage its use PSPP and PSPPIRE
140 do not directly read or write this format.
142 * Missing values for long string variables are now read from and
143 written to system files in an SPSS-compatible fashion.
145 (Earlier versions of PSPP that supported missing values for long
146 string variables wrote them to system files in an SPSS-incompatible
147 way. To fix the problem, read the system file with this version of
148 PSPP and then save a new copy of it.)
150 * pspp-convert, a new standalone utility for converting SPSS system
151 and portable files to other formats, is now included. The initial
152 version supports comma-separated value files as output format.
153 pspp-convert can also decrypt encrypted system files.
157 - zlib is now a required dependency. (Previously it was optional.)
159 Changes from 0.8.0 to 0.8.1:
165 * Changes to existing commands:
167 - CROSSTABS: The requirement that one expected count must be less than five
168 before Fishers Exact Test will be reported has been removed.
170 * PSPPIRE graphical user interface improvements:
172 - A new set of icons has been contributed.
174 - Syntax windows now parse syntax in "auto" mode, which in practice
175 should mean that both "batch" and "interactive" syntax now works,
176 instead of just "interactive" syntax.
178 - The variable pane of data windows now include a Role column.
182 - System files written by IBM SPSS 21 are now read without warnings.
184 - System files written by "VOXCO INTERVIEWER 4.3" are now read
187 - PSPPIRE should now more gracefully handle syntax files that contain
190 Changes from 0.6.2 to 0.8.0:
196 - DATAFILE ATTRIBUTES
203 - LOGISTIC REGRESSION
207 - PRESERVE and RESTORE
211 - SAVE TRANSLATE to CSV and tab-delimited files
213 - VARIABLE ATTRIBUTES
215 * Changes to existing commands:
217 - AUTORECODE has a new GROUP subcommand.
219 - CROSSTABS has been re-implemented to fix numerous bugs.
221 - EXAMINE: /MISSING=LISTWISE is now the default.
223 - DO REPEAT command has been reimplemented. Now, when DO REPEAT
224 contains an INCLUDE or INSERT command, substitutions are not
225 applied to the included file.
227 - FILE HANDLE has a new ENDS subcommand to select CR or CRLF new-lines.
229 - HOST has been updated to use more modern syntax.
231 - Most commands that work with data files now support a new
234 - MISSING VALUES can now assign missing values to long string
237 - ONEWAY: the POSTHOC subcommand is now implemented.
239 - The following new subcommands to NPAR TESTS have been implemented:
240 COCHRAN, FRIEDMAN, JONCKHEERE-TERPSTRA, KENDALL, KRUSKAL-WALLIS, MANN-WHITNEY,
241 MCNEMAR, SIGN, WILCOXON, and RUNS
243 - SET and SHOW no longer have ENDCMD, NULLINE, PROMPT, CPROMPT, and
244 DPROMPT subcommands. The defaults are now fixed values.
246 - SHOW now has a JOURNAL subcommand, to show the location of the
249 - VALUE LABELS can now assign value labels to long string
252 * Other language changes:
254 - The new DATASET commands replace the "scratch file" PSPP
255 extension, which is no longer supported.
257 - Strings may now include arbitrary Unicode code points specified
258 in hexadecimal, using the syntax U'hhhh'. For example, Unicode
259 code point U+1D11E, the musical G clef character, may be
260 expressed as U'1D11E'.
262 See the "Tokens" section in the PSPP manual for more information.
264 - In previous versions of PSPP, in a string expressed in
265 hexadecimal with X'hh' syntax, the hexadecimal digits expressed
266 bytes in the locale encoding. In this version of PSPP, X'hh'
267 syntax always expresses bytes in UTF-8 encoding.
269 See the "Tokens" section in the PSPP manual for more information.
271 * PSPPIRE graphical user interface improvements:
273 - Added support for non-ASCII characters in strings, labels and
276 - A "Split Window" function is available, which makes it easier to
277 see different parts of a large data file.
279 - Data files can now be opened by specifing their name as the first
280 argument. This means that on a properly configured desktop, double
281 clicking on an icon will open the file.
283 - Foreign formats, such as Gnumeric, OpenDocument and CSV can be imported
284 via using an "intelligent" application assistant dialog.
288 - The new "cairo" output driver supports output in PostScript, PDF,
289 and SVG formats. Its functionality is a superset of that of the
290 "postscript" driver, which has been removed. You must have Cairo
291 and Pango installed to build the "cairo" driver.
293 - Charts are now produced with Cairo and Pango, instead of libplot.
294 Without them, the new graphing features will not work. If you do
295 not have Cairo and Pango installed, you must run `configure' with
298 - The plain text output driver now properly supports multibyte UTF-8
299 characters, including double-width characters and combining
302 - Output to OpenDocument format is now supported.
304 - The HTML output is much improved.
306 * The "pspp" program has a new option --batch (or -b) that selects
307 "batch" syntax mode. In previous versions of PSPP this syntax mode
308 was the default. Now a new "auto" syntax mode is the default. In
309 "auto" mode, PSPP interprets most syntax files correctly regardless
310 of their intended syntax mode.
312 See the "Syntax Variants" section in the PSPP manual for more
315 * The "pspp" program has a new option --syntax-encoding that
316 specifies the encoding for syntax files listed on the command line,
317 as well as the default encoding for syntax files included with
318 INCLUDE or INSERT. The default is to accept the system locale
319 encoding, UTF-8, UTF-16, or UTF-32, automatically detecting which
320 one the system file uses.
322 See the documentation for the INSERT command in the PSPP manual for
325 * Text data files that PRINT and WRITE creates now use the system
326 native line ends by default (CRLF on Windows, LF only elsewhere).
327 Use the new ENDS subcommand on FILE HANDLE to override the default.
329 * A new Perl module allows Perl programs to read and write PSPP
332 * A tutorial chapter has been added to the user manual.
334 Changes from 0.6.1 to 0.6.2:
338 - Dutch, thanks to Harry Thijssen.
340 - Brazilian Portuguese, thanks to Michel Boaventura.
342 Thanks for translations are also due to the coordinators at
343 translationproject.org.
345 * Statistical bug fixes:
347 - REGRESSION: Report correct standard error of the estimate (bug
350 - T-TEST: Report correct significance of paired sample T-test in
351 the common case (bug #26936) and corner cases. Thanks to Mike
352 Griffiths and Matej Cepl for reporting these bugs.
354 * Build fixes and changes:
356 - Fix build with GTK+ 2.17.4 and later.
358 - Make running "make" after running "configure" with different
359 settings reliably rebuild version.c.
361 - Cygwin and MinGW build fixes.
363 - Fixes for building with recent gnulib.
365 - The Makefile now honors two new variables, PSPP_LDFLAGS and
366 PSPPIRE_LDFLAGS, that affect linking of the PSPP and PSPPIRE
367 binaries, respectively. This makes building easier for some
370 - Fixes for "configure --enable-relocatable" (bug #25508).
372 * Data file bug fixes and changes:
374 - Fix reading text data files that contain a mix of white space
375 and commas. Now "a ,b" is treated as two fields containing "a"
376 and "b"; previously it was treated as three, with an empty field
379 - Fix writing corrupted .sav files on Windows.
381 - Fix writing variable labels longer than 252 bytes to save files.
382 Thanks to Robert Westlund for reporting this bug.
384 - Fix writing corrupted .por files (bug #26034).
386 - Fix reading .por files whose initial lines are not padded out
387 with spaces as expected.
389 - PSPP will no longer issue warnings about some .sav file records
390 or values that it does not understand. These warnings were
391 harmless, but needlessly alarmed some users.
393 - Fix crash reading empty string fields from PostgreSQL databases.
395 * Bug fixes that affect PSPP and PSPPIRE:
397 - Users may now control precision of output statistics. Instead
398 of hard coding the width and decimals of output numbers, respect
399 the default format in most instances. Counts are now normally
400 displayed with the format of the weight variable, if any.
402 - Fix crash when an INSERT command specifies the name of a file
403 that does not exist (bug #24569).
405 - Fix crash when CROSSTABS specifies a long-string variable (bugs
408 - Fix crash drawing pie charts with many segments.
410 - Fix crash when NUMERIC specifies an invalid format.
412 * PSPPIRE bug fixes and changes:
414 - On Windows, write the output file to the user's home directory
415 instead of the current directory, to better match user
418 - Some data editor fixes.
422 - Fix typo in BINOMIAL section of user manual (bug #25892).
424 Changes from 0.6.0 to 0.6.1:
426 * Statistical bug fixes:
428 - Report correct standardized regression coefficients in linear
429 regression output (bug #23567).
431 * Bug fixes that affect PSPP and PSPPIRE:
433 - Avoid crash with pie charts (bug #24014).
435 - Don't append % to count totals (bug #24003).
437 - Don't crash on bad input (bug #24031).
439 - Don't crash if "end data." is not left aligned (bug #24115).
441 - Change default workspace value to 64 MB, to avoid unnecessary
442 disk accesses on modern machines.
446 - Add ".sav" or ".por" suffix to filename when saving with Save_As
449 - Make it possible to reopen the output window on Windows (bug
452 - A POSIX regular expression library is now included and used
453 automatically if the host does not have one or has one that is
456 * Build fixes and changes:
458 - Work around bug in GSL that prevented build with recent GCC
459 versions without manually adding -fgnu89-inline to CFLAGS.
461 - Also warn about missing prerequisites as we encounter them (bug
464 - Distribute necessary files to allow users working from the
465 distributed tarball to configure with --enable-gui-tools.
467 - Append $(EXEEXT_FOR_BUILD) to output file name when building
468 q2c, fixing build problems on Windows.
470 - GSL 1.8 or later is now required.
472 - Build errors with --enable-relocatable were fixed.
474 * The German translations were removed, since native German speakers
475 found them too poor to be useful.
477 Changes from 0.4.0 to 0.6.0:
479 * The PSPP license is now version 3 or later of the GNU General
480 Public License. Previously, it was version 2 or later.
482 * PSPP now has a graphical interface, called PSPPIRE. This
483 interface allows you to enter data and variable definitions
484 interactively. Commands may be executed in syntax form, or by
485 using the interactive dialog boxes available from the dropdown
488 * A few sample syntax files are now included in the `examples'
491 * Numerous major and minor bugs have been fixed.
495 * The INSTALL file now reflects the details of how to install
496 PSPP. It is a tailored version of the generic installation
497 instructions, instead of a verbatim copy.
499 * iconv, which is ordinarily installed as part of a Unix-like
500 system, is now required. If you don't have it already, you can
501 install GNU libiconv (http://www.gnu.org/software/libiconv/).
503 * libxml2 and zlib are new optional dependencies. They are
504 required to use PSPP's support for reading Gnumeric files.
506 Statistical procedure changes:
508 * REGRESSION is a new procedure for fitting linear models to data
509 via least-squares estimation.
511 * NPAR TESTS is a new procedure for non-parametric tests. In this
512 release, it supports binomial and chi-square tests.
514 * RANK is a new procedure to rank variables. It supports numerous
517 * FREQUENCIES can now output histograms and pie charts. These
518 features were present in earlier releases, but not documented.
520 User interface changes:
522 * In many situations where PSPP once terminated with a fatal
523 error, PSPP now recovers and continues execution.
525 * PSPP is now able to start up and run even if it cannot find its
528 * Journaling of interactive commands to a disk file is now
529 implemented. By default, journaling is enabled, to a file named
530 `pspp.jnl' in the current directory. SET JOURNAL may be used to
533 * The use of `+' between syntax file names on the command line to
534 prevent the dictionary from being cleared between their
535 executions is no longer supported. All syntax files are now
536 executed as if `+' had been specified.
538 * The -d/--define and -u/--undef command line options are no
539 longer supported. Instead, use /usr/bin/env or shell primitives
540 to define or clear environment variables before invoking PSPP.
542 * If a syntax file named named `rc' is found in a configuration
543 directory (such as $HOME/.pspp), it is executed before any
544 syntax file specified on the command line. The -r or
545 --no-statrc command line option may be used to disable this
550 * Output configuration options have changed. Please refer to the
551 manual for a full description of the available options.
553 In consequence, you will need to reinstall your "devices" file.
554 "make install" will do this for you.
556 * Most error messages are now written to PSPP output files by
557 default. SET ERROR can be used to disable this behavior.
559 * When invoked interactively, PSPP now by default produces output
560 on the terminal, piping it through the "more" program.
561 Previously, by default output was written only to file
562 pspp.list. On most terminals, the page length used for output
563 automatically adapts to the terminal size, even if the terminal
568 - This driver now supports charts in output. Charts are written
569 as separate files that the main output file refers to. By
570 default, charts are written in PNG format to files named
571 pspp-1.png, pspp-2.png, and so on.
573 - Configurations are provided that use VT100 (and xterm)
574 line-drawing characters in tables. The option "-o list-vt100"
575 requests use of this device for output to pspp.list.
579 - The default paper size is now determined using the PAPERSIZE
580 environment variable, or the LC_PAPER locale category on
581 systems that support it. If these are not set, the default is
582 now A4, instead of US letter. To make US letter the default,
583 set PAPERSIZE to "letter" in your environment.
585 - Font metrics are now read from AFM files, instead of
586 Groff-format metrics files. PostScript fonts can now be
589 In consequence, you will need to install an AFM file for each
590 font used in PostScript output. "make install" will install
591 AFM files for the standard PostScript fonts, including the
592 ones that the PostScript driver uses by default.
594 - Standard paper sizes no longer need to be specified through a
595 configuration file. The "papersize" configuration file is no
596 longer needed, or supported.
598 - The PostScript prologue is no longer obtained from the
599 "ps-prologue" configuration file. This configuration file is
600 no longer needed, or supported.
604 - The HTML prologue is no longer obtained from the
605 "html-prologue" configuration file. This configuration file
606 is no longer needed, or supported.
608 Command language changes:
610 * The following commands are new:
612 - GET DATA, which currently supports reading Gnumeric files and
613 text data files. It will be extended later to read other
614 types of foreign data.
616 - CD, to change the current directory.
618 - INSERT, to execute a syntax file.
620 - DELETE VARIABLES, to remove variables from the active file
623 - ADD DOCUMENT, to add text to active file documents.
625 - CLOSE FILE HANDLE (a PSPP extension; see below).
627 - XEXPORT, a PSPP extension that is a transformation equivalent
630 * The following functions for transformation expressions are new:
632 - DATEDIFF, for computing the difference of two dates.
634 - DATESUM, for advancing a date by a specified duration.
636 - VALUELABEL, to obtain the value label for a value.
638 * PSPP now supports very long string variables (over 255 bytes
641 * MATCH FILES now supports the FIRST and LAST subcommands.
643 * Previous versions of PSPP prohibited using commands to both read and
644 write a single file at the same time. Now, PSPP allows this, and
645 the new version of the file atomically replaces the old version.
647 * The following commands are no longer available. They will be
648 re-implemented in a later release:
650 - CLEAR TRANSFORMATIONS
656 * The PROCESS IF command, which was deprecated, has been removed.
657 You may replace any usage of it by SELECT IF following
658 TEMPORARY, which has the same effect.
660 * The output format for variables created by VECTOR may now be
661 specified as part of the VECTOR syntax.
663 "Scratch files", a new PSPP extension:
665 A scratch file, like a system file, consists of a dictionary and
666 any number of cases. Small scratch files are stored in memory;
667 one that grows too large is written to disk. By default, any file
668 handle whose name begins with # is assumed to refer to a scratch
671 Scratch files can be used just about anywhere a system or portable
672 file can be used. Also, portable files are now allowed in most
673 places that system files were allowed in previous PSPP version.
675 A new CLOSE FILE HANDLE command allows the storage associated with
676 scratch files to be freed. It also allows file handles to be
677 reassigned to new files.
679 For more information on scratch files, refer to the "File Handles"
680 section in the PSPP manual. For specifics of what commands now
681 allow what kinds of files to be specified, refer to the
682 documentation on those particular commands.
686 * Binary formats and IBM/360 formats, including ASCII/EBCDIC
687 translation, are now supported. Use FILE HANDLE to specify the
688 format of these files.
690 * Little-endian, big-endian, and VAX-endian formats are now
691 supported for integer binary formats when reading and writing
692 data files. The new RIB and WIB subcommands on the SET command
693 control endianness of integer data. The default is the host's
696 * IEEE 754, VAX, and IBM hexadecimal formats are now supported for
697 floating point binary formats when reading and writing data
698 files. The new RRB and WRB subcommands on the SET command
699 control the floating point format. The default is the host's
700 native floating point format.
702 * DATA LIST now supports the SKIP subcommand, to skip records at
703 the beginning of a file. For compatibility, DATA LIST now
704 treats N format as F format for FREE and LIST format input.
706 * The SAVE and XSAVE commands now support the UNSELECTED,
707 PERMISSIONS, NAMES, and MAP subcommands.
709 * The EXPORT command has been re-implemented to obtain better
710 results. Support for the UNSELECTED, DIGITS, and TYPE
711 subcommands has been added.
713 * For compatibility, PRINT now inserts a space at the beginning of
714 every output line, even lines that would otherwise be blank,
715 when OUTFILE is specified. (The behavior of WRITE is
718 * For compatibility, PRINT EJECT now inserts the digit `1' at the
719 beginning of each line that should begin a new page.
721 * For compatibility, WRITE now outputs the system-missing value as
722 a field filled with spaces. Binary formats are an exception.
723 (The behavior of PRINT is unchanged.)
727 * Input and output format descriptions have been rewritten. They
728 now precisely describe what is accepted on input and written on
731 * The descriptions of the PSPP system and portable file formats
732 have been extensively revised and improved.
734 For developers, the build system now requires Autoconf 2.60 and
737 Changes from 0.3.0 to 0.4.0:
739 Changes in build dependencies:
741 * The GNU Scientific Library (libgsl), version 1.6 or later, is
744 * libplot from GNU plotutils is optional. Without it, the new
745 graphing features will not work. If you do not have it
746 installed, you must run `configure' with --without-libplot.
748 * libgmp2 is no longer a dependency.
750 Newly implemented commands and statistical features:
752 * EXAMINE, including its graphing features.
754 * FREQUENCIES now supports percentiles.
762 * SORT CASES now sorts stably, that is, two cases with equal sort
763 criteria will be in the same relative order before and after the
766 * T-TEST (re-written).
768 * DATE and USE. These commands are parsed but otherwise ignored,
769 to enhance compatibility with certain command files that invoke
772 * VARIABLE WIDTH, VARIABLE ALIGNMENT, and VARIABLE LEVEL. These
773 currently have no effect on PSPP output, but their values are
774 written to and read from system files and thus may affect
775 third-party software.
777 * SET EPOCH implemented.
779 * DATA LIST FREE and DATA LIST LIST now support arbitrary field
782 * FILE HANDLE now supports custom tab widths.
784 Long variable names (and other identifiers) are now supported. Up
785 to the first 64 bytes of each identifier is significant. PSPP now
786 reads and writes system files compatible with SPSS version 12.
788 New --algorithm and --syntax command line options allow
789 SPSS-compatible or enhanced modes to be selected.
791 Support for transformation expressions has been rewritten and
792 significantly improved. Refer to the manual for details.
794 Calculation of moments (mean, standard deviation, kurtosis,
795 skewness) has been rewritten and should now be more accurate. In
796 --algorithm=enhanced mode moments may be more accurate than SPSS in
799 Numerous bugs have been fixed, too many to mention here. Many new
800 tests have been added, leading to the discovery and fixing of many
803 The ASCII output driver can now squeeze multiple blank lines into
806 Much of the code has been rewritten and refactored. It is now much
809 The FILE TYPE and REPEATING DATA commands have been disabled for
810 this release because their implementations were deemed too buggy to
811 be useful. They will be fixed and replaced in a future release.
813 New pspp-mode for Emacs (in pspp-mode.el).
815 Added rudimentary command-line completion for interactive input.
817 lib/julcal and lib/dcdflib are no longer used, so they have been
820 For developers, the build system now requires Autoconf 2.58 and
821 Automake 1.7. The included gettext has been updated to version
824 Some reports state that Texinfo 4.8, the latest version, may be
825 necessary to successfully format the documentation on some systems.
827 Version 0.3.0 changes since 0.2.3:
831 * Using alphanumeric variables in functions under AGGREGATE
834 * Under certain circumstances, the final case would be omitted
835 from the results of an AGGREGATE operation. Fixed.
837 * Undefined behavior was invoked by referencing a freed pointer
838 under certain circumstances. Fixed.
840 * A wrong record size was displayed when paging the active file to
843 * Not having enough temporary space for sorting caused a core
846 * Syntax errors in function descriptions on AGGREGATE caused core
849 * A null pointer was dereferenced, causing a core dump, when
850 PERCENTILES was specified on FREQUENCIES. This fixes the
851 problem, but PSPP still doesn't calculate percentiles.
853 * SORT always sorted in ascending order. Fixed.
855 * Some minor memory leaks in the expression parser were removed.
857 * Many assertions fixed for strict ANSI C compliance.
861 * SET ECHO ON now implemented, but turned off by default.
863 * PRINT specifier supported on END REPEAT.
867 * System libgmp2 library is used if installed instead of
868 unconditionally using the included libgmp2 subset.
870 * Extensive code cleanup, which continues.
872 * Added CORRELATIONS command parser, but not implemented.
874 Version 0.2.3 changes since 0.2.2:
878 * SPLIT FILE with a string variable caused a core dump. Fixed.
880 * Nested INCLUDEs didn't work. Fixed.
882 * The MATCH FILES procedure set the values of variables not present
883 to 0. It should have been SYSMIS. This is now fixed.
885 * The REMARK command was too aggressive about skipping lines. It
886 didn't like being the last command in a file.
888 * Comment parsing wasn't consistent with the rest of the code in its
889 idea of where one command ends and another starts. This meant
890 that sometimes commands would be mysteriously ignored. Thanks to
891 Dr. Dirk Melcher <BZN-mdksh@t-online.de> for reporting this bug.
893 * The TABLE subcommand on MATCH FILES worked only erratically at
894 best. This fixes it. Thanks to Dr. Dirk Melcher
895 <BZN-mdksh@t-online.de> for reporting this bug.
897 * VARIABLE LABELS rejected a slash before the first variable
898 specification, contradicting the documentation. Thanks to Walter
899 M. Gray <graywm@northernc.on.ca> for reporting this bug.
901 * Because of an incorrect optimization in memory allocation,
902 CROSSTABS sometimes segfaulted when asked to output multiple
903 tables. Thanks to Walter M. Gray <graywm@northernc.on.ca> for
906 * CROSSTABS didn't display value labels for column and row
907 variables. Thanks to Walter M. Gray <graywm@northernc.on.ca> for
910 * WRITE didn't write line ends. Fixed. Thanks to Dr. Dirk Melcher
911 <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 * MATCH FILES corrupted memory and dumped core on some syntax
936 * MATCH FILES should set numeric values not available to the
937 system-missing value, not to 0. Thanks to Dr. Dirk Melcher
938 <BZN-mdksh@t-online.de> for reporting this bug.
940 * KEEP didn't work properly on the SAVE procedure. Fixed. Thanks
941 to Ralf Geschke <ralf@kuerbis.org> for reporting this bug.
945 * Some systems didn't like the way open_file was coded. Thanks to
946 Hankin <hankin@rogue.consultco.com> for pointing this out.
948 * The SAVE procedure didn't save long string variables properly.
949 Fixed by this patch. Thanks to Hankin
950 <hankin@rogue.consultco.com> for this patch.
952 * Minor documentation fixes for MATCH FILES.
954 Version 0.2.2 changes since 0.2.1:
958 * Fix behavior of PRINT SPACE for negative arguments.
960 * Fix reading some unusual system files.
962 * Fix LIST problems with very long variables. Thanks to Hankin
963 <hankin@dunno.com> for this bug report.
965 * Fix problems with some string format specifiers.
967 * Fix use of $CASENUM in expressions. Thanks to Dirk Melcher
968 <BZN-mdksh@t-online.de> for reporting this bug.
970 * Additional DATA LIST FREE and DATA LIST LIST fixes. Thanks to
971 Hankin <hankin@dunno.com> again on this one.
973 * Sometimes you may encounter a PSPP script that has to be
974 interpreted in interactive mode. Now you can use the -i flag to
977 * Warnings for egcs 1.1.1 cleaned up. (However you'll get lots of
978 `unused variable' warnings under gcc 2.7.2.3, fixing this will
983 * The files in gmp need the internationalization directory in
984 their include path. Thanks to OKUJI Yoshinori
985 <okuji@kuicr.kyoto-u.ac.jp> for pointing this out.
987 Version 0.2.1 changes since 0.2.0:
991 * Remember to include examples/ directory in distribution :-)
993 * Fixed gmp compile problems for some non-i386 architectures.
994 Thanks to Hans Olav Eggestad <olav@jordforsk.nlh.no> and others
997 * DATA LIST FREE and DATA LIST LIST parsing of input files is now
998 matches the documented behavior exactly, and error messages are
999 more helpful. Thanks to Mark H. Wood <mwood@IUPUI.Edu>.
1001 Version 0.2.0 changes since 0.1.0:
1003 Procedures now implemented:
1004 * CROSSTABS. Please see documentation for caveats.
1006 Transformations and utilities now implemented:
1009 * CLEAR TRANSFORMATIONS
1010 * DISPLAY (all subcommands).
1021 Support for input and output through pipes: "|command" and
1022 "command|" filenames; support for special filenames "-", "stdin",
1025 New command-line features:
1026 * New option --testing-mode: Invoke heuristics to assist testing.
1027 * New option --safer, -s: Don't allow certain unsafe operations.
1028 * New option --command=CMD, -c CMD: Perform literal command CMD.
1029 * rc file ~/.pspp/rc is executed before any other files.
1030 * Now multiple syntax files can be specified.
1032 Operator LAG is now implemented.
1034 Added missing FILE subcommand to REREAD.
1036 Table output manager completely rewritten.
1038 Device configuration file syntax changed. You will need to
1039 reinstall your `devices' file.
1041 New output driver for HTML.
1043 PostScript driver and prologue simplified.
1045 Many bugs fixed. General source-code cleanup.
1047 Added Texinfo documentation for:
1048 * PSPP system file format
1049 * PSPP portable file format
1050 * How to write input for q2c parser generator
1053 PSPP language is now fully documented. Please report any
1054 inaccuracies or omissions in the documentation.
1056 Changes for version 0.1.0:
1058 First public release. For changes from unreleased development
1059 versions, please see ONEWS.
1061 ----------------------------------------------------------------------
1062 Copyright information:
1064 Permission is granted to anyone to make or distribute verbatim
1065 copies of this document as received, in any medium, provided that
1066 the copyright notice and this permission notice are preserved, thus
1067 giving the recipient permission to redistribute in turn.
1069 Permission is granted to distribute modified versions of this
1070 document, or of portions of it, under the above conditions,
1071 provided also that they carry prominent notices stating who last
1075 version-control: never
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