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.
9 * A Russian localisation has been contributed.
11 * The graphical user interface uses Gtk+ version 3 instead of version 2.
12 Accordingly, it has a somewhat different look and feel.
14 * Bug fixes, including the following notable ones:
16 - The correlation coefficient in the paired samples t-test
17 procedure is now correctly calculated when presented with
20 - The ESCAPE subcommand has been removed from GET DATA /TYPE=TXT.
21 For compatibility, the behavior that ESCAPE enabled is now the
22 default and only supported behavior.
24 Changes from 0.8.4 to 0.8.5:
26 * The FREQUENCIES and CROSSTABS commands can now generate barcharts.
28 * The FACTOR command can now perform PROMAX rotations.
30 * SPSS/PC+ system files are now supported on GET and other commands
31 that read SPSS system files. The pspp-convert program can now read
32 SPSS/PC+ system files. Writing the obsolete SPSS/PC+ system file
33 format is not supported.
35 * SYSFILE INFO can now read SPSS/PC+ system files and SPSS portable
38 * FREQUENCIES: A bug was fixed where an assertion failure occured
39 when an empty dataset was presented.
41 * The GRAPH command is now available. Initially it supports
42 scatterplots and histograms.
44 * The RND operator in expressions now supports additional operands
45 for rounding to values other than integers and to indicate a level
46 of rounding fuzz. The default rounding fuzz may now be controlled
47 and displayed with SET FUZZBITS and SHOW FUZZBITS, respectively.
49 Changes from 0.8.3 to 0.8.4:
51 * Formatting of SYSFILE INFO output was made easier to read.
53 * Bug fixes, including the following notable ones:
55 - FREQUENCIES works properly for string variables. (This bug was
58 - CROSSTABS now correctly computes all of the measures that it
59 offers. Some measures have been removed because they were not
62 - The NPAR TESTS calculation of significance for the RUNS
63 subcommand has been corrected.
65 - Planned comparisons in ONEWAY ANOVA now correctly handle negative
68 - The COUNT command now correctly treats missing values as
71 - Conformance fixes to Open Document output format.
73 Changes from 0.8.2 to 0.8.3:
75 * Independent T-Tests displayed the standard error of the difference
76 and the confidence interval for the unequal variances case, where
77 the equal variances case should have been. This has been fixed.
79 * REGRESSION now recognises /STATISTICS=CI(x) which causes confidence
80 intervals for the coefficients to be printed.
82 * When DESCRIPTIVES calculates Z scores, it now omits cases filtered
83 by the current FILTER settings.
85 * PSPPIRE graphical user interface improvements:
87 - Dialog boxes with source variable lists can now choose the sort
88 order; right click and select from the popup menu.
90 - File|Open now allows an encoding to be selected for opening
93 - File|Display Data File Information|External File... now allows an
94 encoding to be selected.
96 - A problem with the Means dialog has been resolved (bug #41433).
98 - Several problems related to the input of spreadsheets have been
99 fixed (bug #41657, #41620
101 * System file related improvements:
103 - With ENCODING="DETECT", SYSFILE INFO can now help the user to
104 pick an encoding for reading a system file that does not identify
107 - SYSFILE INFO now accepts an ENCODING subcommand to specify the
108 character encoding of string data in the system file.
110 - Variable labels over 255 bytes long are now accepted without
111 truncation (bug #41863).
113 - System files that contain duplicate variable names may now be
114 read successfully (bug #41475).
116 Changes from 0.8.1 to 0.8.2:
118 * Charts are now rendered with colours from the Tango palette instead
119 of fully saturated primaries.
121 * Support for new system file variants:
123 - PSPP can now read and write ZCOMPRESSED system files, which
124 compress data much more effectively than older "compressed"
125 files. (The older format is still supported.)
127 - PSPP can now decrypt encrypted system files, using the new
128 pspp-convert utility. The encrypted system file format is
129 unacceptably insecure, so to discourage its use PSPP and PSPPIRE
130 do not directly read or write this format.
132 * Missing values for long string variables are now read from and
133 written to system files in an SPSS-compatible fashion.
135 (Earlier versions of PSPP that supported missing values for long
136 string variables wrote them to system files in an SPSS-incompatible
137 way. To fix the problem, read the system file with this version of
138 PSPP and then save a new copy of it.)
140 * pspp-convert, a new standalone utility for converting SPSS system
141 and portable files to other formats, is now included. The initial
142 version supports comma-separated value files as output format.
143 pspp-convert can also decrypt encrypted system files.
147 - zlib is now a required dependency. (Previously it was optional.)
149 Changes from 0.8.0 to 0.8.1:
155 * Changes to existing commands:
157 - CROSSTABS: The requirement that one expected count must be less than five
158 before Fishers Exact Test will be reported has been removed.
160 * PSPPIRE graphical user interface improvements:
162 - A new set of icons has been contributed.
164 - Syntax windows now parse syntax in "auto" mode, which in practice
165 should mean that both "batch" and "interactive" syntax now works,
166 instead of just "interactive" syntax.
168 - The variable pane of data windows now include a Role column.
172 - System files written by IBM SPSS 21 are now read without warnings.
174 - System files written by "VOXCO INTERVIEWER 4.3" are now read
177 - PSPPIRE should now more gracefully handle syntax files that contain
180 Changes from 0.6.2 to 0.8.0:
186 - DATAFILE ATTRIBUTES
193 - LOGISTIC REGRESSION
197 - PRESERVE and RESTORE
201 - SAVE TRANSLATE to CSV and tab-delimited files
203 - VARIABLE ATTRIBUTES
205 * Changes to existing commands:
207 - AUTORECODE has a new GROUP subcommand.
209 - CROSSTABS has been re-implemented to fix numerous bugs.
211 - EXAMINE: /MISSING=LISTWISE is now the default.
213 - DO REPEAT command has been reimplemented. Now, when DO REPEAT
214 contains an INCLUDE or INSERT command, substitutions are not
215 applied to the included file.
217 - FILE HANDLE has a new ENDS subcommand to select CR or CRLF new-lines.
219 - HOST has been updated to use more modern syntax.
221 - Most commands that work with data files now support a new
224 - MISSING VALUES can now assign missing values to long string
227 - ONEWAY: the POSTHOC subcommand is now implemented.
229 - The following new subcommands to NPAR TESTS have been implemented:
230 COCHRAN, FRIEDMAN, JONCKHEERE-TERPSTRA, KENDALL, KRUSKAL-WALLIS, MANN-WHITNEY,
231 MCNEMAR, SIGN, WILCOXON, and RUNS
233 - SET and SHOW no longer have ENDCMD, NULLINE, PROMPT, CPROMPT, and
234 DPROMPT subcommands. The defaults are now fixed values.
236 - SHOW now has a JOURNAL subcommand, to show the location of the
239 - VALUE LABELS can now assign value labels to long string
242 * Other language changes:
244 - The new DATASET commands replace the "scratch file" PSPP
245 extension, which is no longer supported.
247 - Strings may now include arbitrary Unicode code points specified
248 in hexadecimal, using the syntax U'hhhh'. For example, Unicode
249 code point U+1D11E, the musical G clef character, may be
250 expressed as U'1D11E'.
252 See the "Tokens" section in the PSPP manual for more information.
254 - In previous versions of PSPP, in a string expressed in
255 hexadecimal with X'hh' syntax, the hexadecimal digits expressed
256 bytes in the locale encoding. In this version of PSPP, X'hh'
257 syntax always expresses bytes in UTF-8 encoding.
259 See the "Tokens" section in the PSPP manual for more information.
261 * PSPPIRE graphical user interface improvements:
263 - Added support for non-ASCII characters in strings, labels and
266 - A "Split Window" function is available, which makes it easier to
267 see different parts of a large data file.
269 - Data files can now be opened by specifing their name as the first
270 argument. This means that on a properly configured desktop, double
271 clicking on an icon will open the file.
273 - Foreign formats, such as Gnumeric, OpenDocument and CSV can be imported
274 via using an "intelligent" application assistant dialog.
278 - The new "cairo" output driver supports output in PostScript, PDF,
279 and SVG formats. Its functionality is a superset of that of the
280 "postscript" driver, which has been removed. You must have Cairo
281 and Pango installed to build the "cairo" driver.
283 - Charts are now produced with Cairo and Pango, instead of libplot.
284 Without them, the new graphing features will not work. If you do
285 not have Cairo and Pango installed, you must run `configure' with
288 - The plain text output driver now properly supports multibyte UTF-8
289 characters, including double-width characters and combining
292 - Output to OpenDocument format is now supported.
294 - The HTML output is much improved.
296 * The "pspp" program has a new option --batch (or -b) that selects
297 "batch" syntax mode. In previous versions of PSPP this syntax mode
298 was the default. Now a new "auto" syntax mode is the default. In
299 "auto" mode, PSPP interprets most syntax files correctly regardless
300 of their intended syntax mode.
302 See the "Syntax Variants" section in the PSPP manual for more
305 * The "pspp" program has a new option --syntax-encoding that
306 specifies the encoding for syntax files listed on the command line,
307 as well as the default encoding for syntax files included with
308 INCLUDE or INSERT. The default is to accept the system locale
309 encoding, UTF-8, UTF-16, or UTF-32, automatically detecting which
310 one the system file uses.
312 See the documentation for the INSERT command in the PSPP manual for
315 * Text data files that PRINT and WRITE creates now use the system
316 native line ends by default (CRLF on Windows, LF only elsewhere).
317 Use the new ENDS subcommand on FILE HANDLE to override the default.
319 * A new Perl module allows Perl programs to read and write PSPP
322 * A tutorial chapter has been added to the user manual.
324 Changes from 0.6.1 to 0.6.2:
328 - Dutch, thanks to Harry Thijssen.
330 - Brazilian Portuguese, thanks to Michel Boaventura.
332 Thanks for translations are also due to the coordinators at
333 translationproject.org.
335 * Statistical bug fixes:
337 - REGRESSION: Report correct standard error of the estimate (bug
340 - T-TEST: Report correct significance of paired sample T-test in
341 the common case (bug #26936) and corner cases. Thanks to Mike
342 Griffiths and Matej Cepl for reporting these bugs.
344 * Build fixes and changes:
346 - Fix build with GTK+ 2.17.4 and later.
348 - Make running "make" after running "configure" with different
349 settings reliably rebuild version.c.
351 - Cygwin and MinGW build fixes.
353 - Fixes for building with recent gnulib.
355 - The Makefile now honors two new variables, PSPP_LDFLAGS and
356 PSPPIRE_LDFLAGS, that affect linking of the PSPP and PSPPIRE
357 binaries, respectively. This makes building easier for some
360 - Fixes for "configure --enable-relocatable" (bug #25508).
362 * Data file bug fixes and changes:
364 - Fix reading text data files that contain a mix of white space
365 and commas. Now "a ,b" is treated as two fields containing "a"
366 and "b"; previously it was treated as three, with an empty field
369 - Fix writing corrupted .sav files on Windows.
371 - Fix writing variable labels longer than 252 bytes to save files.
372 Thanks to Robert Westlund for reporting this bug.
374 - Fix writing corrupted .por files (bug #26034).
376 - Fix reading .por files whose initial lines are not padded out
377 with spaces as expected.
379 - PSPP will no longer issue warnings about some .sav file records
380 or values that it does not understand. These warnings were
381 harmless, but needlessly alarmed some users.
383 - Fix crash reading empty string fields from PostgreSQL databases.
385 * Bug fixes that affect PSPP and PSPPIRE:
387 - Users may now control precision of output statistics. Instead
388 of hard coding the width and decimals of output numbers, respect
389 the default format in most instances. Counts are now normally
390 displayed with the format of the weight variable, if any.
392 - Fix crash when an INSERT command specifies the name of a file
393 that does not exist (bug #24569).
395 - Fix crash when CROSSTABS specifies a long-string variable (bugs
398 - Fix crash drawing pie charts with many segments.
400 - Fix crash when NUMERIC specifies an invalid format.
402 * PSPPIRE bug fixes and changes:
404 - On Windows, write the output file to the user's home directory
405 instead of the current directory, to better match user
408 - Some data editor fixes.
412 - Fix typo in BINOMIAL section of user manual (bug #25892).
414 Changes from 0.6.0 to 0.6.1:
416 * Statistical bug fixes:
418 - Report correct standardized regression coefficients in linear
419 regression output (bug #23567).
421 * Bug fixes that affect PSPP and PSPPIRE:
423 - Avoid crash with pie charts (bug #24014).
425 - Don't append % to count totals (bug #24003).
427 - Don't crash on bad input (bug #24031).
429 - Don't crash if "end data." is not left aligned (bug #24115).
431 - Change default workspace value to 64 MB, to avoid unnecessary
432 disk accesses on modern machines.
436 - Add ".sav" or ".por" suffix to filename when saving with Save_As
439 - Make it possible to reopen the output window on Windows (bug
442 - A POSIX regular expression library is now included and used
443 automatically if the host does not have one or has one that is
446 * Build fixes and changes:
448 - Work around bug in GSL that prevented build with recent GCC
449 versions without manually adding -fgnu89-inline to CFLAGS.
451 - Also warn about missing prerequisites as we encounter them (bug
454 - Distribute necessary files to allow users working from the
455 distributed tarball to configure with --enable-gui-tools.
457 - Append $(EXEEXT_FOR_BUILD) to output file name when building
458 q2c, fixing build problems on Windows.
460 - GSL 1.8 or later is now required.
462 - Build errors with --enable-relocatable were fixed.
464 * The German translations were removed, since native German speakers
465 found them too poor to be useful.
467 Changes from 0.4.0 to 0.6.0:
469 * The PSPP license is now version 3 or later of the GNU General
470 Public License. Previously, it was version 2 or later.
472 * PSPP now has a graphical interface, called PSPPIRE. This
473 interface allows you to enter data and variable definitions
474 interactively. Commands may be executed in syntax form, or by
475 using the interactive dialog boxes available from the dropdown
478 * A few sample syntax files are now included in the `examples'
481 * Numerous major and minor bugs have been fixed.
485 * The INSTALL file now reflects the details of how to install
486 PSPP. It is a tailored version of the generic installation
487 instructions, instead of a verbatim copy.
489 * iconv, which is ordinarily installed as part of a Unix-like
490 system, is now required. If you don't have it already, you can
491 install GNU libiconv (http://www.gnu.org/software/libiconv/).
493 * libxml2 and zlib are new optional dependencies. They are
494 required to use PSPP's support for reading Gnumeric files.
496 Statistical procedure changes:
498 * REGRESSION is a new procedure for fitting linear models to data
499 via least-squares estimation.
501 * NPAR TESTS is a new procedure for non-parametric tests. In this
502 release, it supports binomial and chi-square tests.
504 * RANK is a new procedure to rank variables. It supports numerous
507 * FREQUENCIES can now output histograms and pie charts. These
508 features were present in earlier releases, but not documented.
510 User interface changes:
512 * In many situations where PSPP once terminated with a fatal
513 error, PSPP now recovers and continues execution.
515 * PSPP is now able to start up and run even if it cannot find its
518 * Journaling of interactive commands to a disk file is now
519 implemented. By default, journaling is enabled, to a file named
520 `pspp.jnl' in the current directory. SET JOURNAL may be used to
523 * The use of `+' between syntax file names on the command line to
524 prevent the dictionary from being cleared between their
525 executions is no longer supported. All syntax files are now
526 executed as if `+' had been specified.
528 * The -d/--define and -u/--undef command line options are no
529 longer supported. Instead, use /usr/bin/env or shell primitives
530 to define or clear environment variables before invoking PSPP.
532 * If a syntax file named named `rc' is found in a configuration
533 directory (such as $HOME/.pspp), it is executed before any
534 syntax file specified on the command line. The -r or
535 --no-statrc command line option may be used to disable this
540 * Output configuration options have changed. Please refer to the
541 manual for a full description of the available options.
543 In consequence, you will need to reinstall your "devices" file.
544 "make install" will do this for you.
546 * Most error messages are now written to PSPP output files by
547 default. SET ERROR can be used to disable this behavior.
549 * When invoked interactively, PSPP now by default produces output
550 on the terminal, piping it through the "more" program.
551 Previously, by default output was written only to file
552 pspp.list. On most terminals, the page length used for output
553 automatically adapts to the terminal size, even if the terminal
558 - This driver now supports charts in output. Charts are written
559 as separate files that the main output file refers to. By
560 default, charts are written in PNG format to files named
561 pspp-1.png, pspp-2.png, and so on.
563 - Configurations are provided that use VT100 (and xterm)
564 line-drawing characters in tables. The option "-o list-vt100"
565 requests use of this device for output to pspp.list.
569 - The default paper size is now determined using the PAPERSIZE
570 environment variable, or the LC_PAPER locale category on
571 systems that support it. If these are not set, the default is
572 now A4, instead of US letter. To make US letter the default,
573 set PAPERSIZE to "letter" in your environment.
575 - Font metrics are now read from AFM files, instead of
576 Groff-format metrics files. PostScript fonts can now be
579 In consequence, you will need to install an AFM file for each
580 font used in PostScript output. "make install" will install
581 AFM files for the standard PostScript fonts, including the
582 ones that the PostScript driver uses by default.
584 - Standard paper sizes no longer need to be specified through a
585 configuration file. The "papersize" configuration file is no
586 longer needed, or supported.
588 - The PostScript prologue is no longer obtained from the
589 "ps-prologue" configuration file. This configuration file is
590 no longer needed, or supported.
594 - The HTML prologue is no longer obtained from the
595 "html-prologue" configuration file. This configuration file
596 is no longer needed, or supported.
598 Command language changes:
600 * The following commands are new:
602 - GET DATA, which currently supports reading Gnumeric files and
603 text data files. It will be extended later to read other
604 types of foreign data.
606 - CD, to change the current directory.
608 - INSERT, to execute a syntax file.
610 - DELETE VARIABLES, to remove variables from the active file
613 - ADD DOCUMENT, to add text to active file documents.
615 - CLOSE FILE HANDLE (a PSPP extension; see below).
617 - XEXPORT, a PSPP extension that is a transformation equivalent
620 * The following functions for transformation expressions are new:
622 - DATEDIFF, for computing the difference of two dates.
624 - DATESUM, for advancing a date by a specified duration.
626 - VALUELABEL, to obtain the value label for a value.
628 * PSPP now supports very long string variables (over 255 bytes
631 * MATCH FILES now supports the FIRST and LAST subcommands.
633 * Previous versions of PSPP prohibited using commands to both read and
634 write a single file at the same time. Now, PSPP allows this, and
635 the new version of the file atomically replaces the old version.
637 * The following commands are no longer available. They will be
638 re-implemented in a later release:
640 - CLEAR TRANSFORMATIONS
646 * The PROCESS IF command, which was deprecated, has been removed.
647 You may replace any usage of it by SELECT IF following
648 TEMPORARY, which has the same effect.
650 * The output format for variables created by VECTOR may now be
651 specified as part of the VECTOR syntax.
653 "Scratch files", a new PSPP extension:
655 A scratch file, like a system file, consists of a dictionary and
656 any number of cases. Small scratch files are stored in memory;
657 one that grows too large is written to disk. By default, any file
658 handle whose name begins with # is assumed to refer to a scratch
661 Scratch files can be used just about anywhere a system or portable
662 file can be used. Also, portable files are now allowed in most
663 places that system files were allowed in previous PSPP version.
665 A new CLOSE FILE HANDLE command allows the storage associated with
666 scratch files to be freed. It also allows file handles to be
667 reassigned to new files.
669 For more information on scratch files, refer to the "File Handles"
670 section in the PSPP manual. For specifics of what commands now
671 allow what kinds of files to be specified, refer to the
672 documentation on those particular commands.
676 * Binary formats and IBM/360 formats, including ASCII/EBCDIC
677 translation, are now supported. Use FILE HANDLE to specify the
678 format of these files.
680 * Little-endian, big-endian, and VAX-endian formats are now
681 supported for integer binary formats when reading and writing
682 data files. The new RIB and WIB subcommands on the SET command
683 control endianness of integer data. The default is the host's
686 * IEEE 754, VAX, and IBM hexadecimal formats are now supported for
687 floating point binary formats when reading and writing data
688 files. The new RRB and WRB subcommands on the SET command
689 control the floating point format. The default is the host's
690 native floating point format.
692 * DATA LIST now supports the SKIP subcommand, to skip records at
693 the beginning of a file. For compatibility, DATA LIST now
694 treats N format as F format for FREE and LIST format input.
696 * The SAVE and XSAVE commands now support the UNSELECTED,
697 PERMISSIONS, NAMES, and MAP subcommands.
699 * The EXPORT command has been re-implemented to obtain better
700 results. Support for the UNSELECTED, DIGITS, and TYPE
701 subcommands has been added.
703 * For compatibility, PRINT now inserts a space at the beginning of
704 every output line, even lines that would otherwise be blank,
705 when OUTFILE is specified. (The behavior of WRITE is
708 * For compatibility, PRINT EJECT now inserts the digit `1' at the
709 beginning of each line that should begin a new page.
711 * For compatibility, WRITE now outputs the system-missing value as
712 a field filled with spaces. Binary formats are an exception.
713 (The behavior of PRINT is unchanged.)
717 * Input and output format descriptions have been rewritten. They
718 now precisely describe what is accepted on input and written on
721 * The descriptions of the PSPP system and portable file formats
722 have been extensively revised and improved.
724 For developers, the build system now requires Autoconf 2.60 and
727 Changes from 0.3.0 to 0.4.0:
729 Changes in build dependencies:
731 * The GNU Scientific Library (libgsl), version 1.6 or later, is
734 * libplot from GNU plotutils is optional. Without it, the new
735 graphing features will not work. If you do not have it
736 installed, you must run `configure' with --without-libplot.
738 * libgmp2 is no longer a dependency.
740 Newly implemented commands and statistical features:
742 * EXAMINE, including its graphing features.
744 * FREQUENCIES now supports percentiles.
752 * SORT CASES now sorts stably, that is, two cases with equal sort
753 criteria will be in the same relative order before and after the
756 * T-TEST (re-written).
758 * DATE and USE. These commands are parsed but otherwise ignored,
759 to enhance compatibility with certain command files that invoke
762 * VARIABLE WIDTH, VARIABLE ALIGNMENT, and VARIABLE LEVEL. These
763 currently have no effect on PSPP output, but their values are
764 written to and read from system files and thus may affect
765 third-party software.
767 * SET EPOCH implemented.
769 * DATA LIST FREE and DATA LIST LIST now support arbitrary field
772 * FILE HANDLE now supports custom tab widths.
774 Long variable names (and other identifiers) are now supported. Up
775 to the first 64 bytes of each identifier is significant. PSPP now
776 reads and writes system files compatible with SPSS version 12.
778 New --algorithm and --syntax command line options allow
779 SPSS-compatible or enhanced modes to be selected.
781 Support for transformation expressions has been rewritten and
782 significantly improved. Refer to the manual for details.
784 Calculation of moments (mean, standard deviation, kurtosis,
785 skewness) has been rewritten and should now be more accurate. In
786 --algorithm=enhanced mode moments may be more accurate than SPSS in
789 Numerous bugs have been fixed, too many to mention here. Many new
790 tests have been added, leading to the discovery and fixing of many
793 The ASCII output driver can now squeeze multiple blank lines into
796 Much of the code has been rewritten and refactored. It is now much
799 The FILE TYPE and REPEATING DATA commands have been disabled for
800 this release because their implementations were deemed too buggy to
801 be useful. They will be fixed and replaced in a future release.
803 New pspp-mode for Emacs (in pspp-mode.el).
805 Added rudimentary command-line completion for interactive input.
807 lib/julcal and lib/dcdflib are no longer used, so they have been
810 For developers, the build system now requires Autoconf 2.58 and
811 Automake 1.7. The included gettext has been updated to version
814 Some reports state that Texinfo 4.8, the latest version, may be
815 necessary to successfully format the documentation on some systems.
817 Version 0.3.0 changes since 0.2.3:
821 * Using alphanumeric variables in functions under AGGREGATE
824 * Under certain circumstances, the final case would be omitted
825 from the results of an AGGREGATE operation. Fixed.
827 * Undefined behavior was invoked by referencing a freed pointer
828 under certain circumstances. Fixed.
830 * A wrong record size was displayed when paging the active file to
833 * Not having enough temporary space for sorting caused a core
836 * Syntax errors in function descriptions on AGGREGATE caused core
839 * A null pointer was dereferenced, causing a core dump, when
840 PERCENTILES was specified on FREQUENCIES. This fixes the
841 problem, but PSPP still doesn't calculate percentiles.
843 * SORT always sorted in ascending order. Fixed.
845 * Some minor memory leaks in the expression parser were removed.
847 * Many assertions fixed for strict ANSI C compliance.
851 * SET ECHO ON now implemented, but turned off by default.
853 * PRINT specifier supported on END REPEAT.
857 * System libgmp2 library is used if installed instead of
858 unconditionally using the included libgmp2 subset.
860 * Extensive code cleanup, which continues.
862 * Added CORRELATIONS command parser, but not implemented.
864 Version 0.2.3 changes since 0.2.2:
868 * SPLIT FILE with a string variable caused a core dump. Fixed.
870 * Nested INCLUDEs didn't work. Fixed.
872 * The MATCH FILES procedure set the values of variables not present
873 to 0. It should have been SYSMIS. This is now fixed.
875 * The REMARK command was too aggressive about skipping lines. It
876 didn't like being the last command in a file.
878 * Comment parsing wasn't consistent with the rest of the code in its
879 idea of where one command ends and another starts. This meant
880 that sometimes commands would be mysteriously ignored. Thanks to
881 Dr. Dirk Melcher <BZN-mdksh@t-online.de> for reporting this bug.
883 * The TABLE subcommand on MATCH FILES worked only erratically at
884 best. This fixes it. Thanks to Dr. Dirk Melcher
885 <BZN-mdksh@t-online.de> for reporting this bug.
887 * VARIABLE LABELS rejected a slash before the first variable
888 specification, contradicting the documentation. Thanks to Walter
889 M. Gray <graywm@northernc.on.ca> for reporting this bug.
891 * Because of an incorrect optimization in memory allocation,
892 CROSSTABS sometimes segfaulted when asked to output multiple
893 tables. Thanks to Walter M. Gray <graywm@northernc.on.ca> for
896 * CROSSTABS didn't display value labels for column and row
897 variables. Thanks to Walter M. Gray <graywm@northernc.on.ca> for
900 * WRITE didn't write line ends. Fixed. Thanks to Dr. Dirk Melcher
901 <BZN-mdksh@t-online.de> for reporting this bug.
903 * The TABLE subcommand on MATCH FILES worked only erratically at
904 best. This fixes it. Thanks to Dr. Dirk Melcher
905 <BZN-mdksh@t-online.de> for reporting this bug.
907 * VARIABLE LABELS rejected a slash before the first variable
908 specification, contradicting the documentation. Thanks to Walter
909 M. Gray <graywm@northernc.on.ca> for reporting this bug.
911 * Because of an incorrect optimization in memory allocation,
912 CROSSTABS sometimes segfaulted when asked to output multiple
913 tables. Thanks to Walter M. Gray <graywm@northernc.on.ca> for
916 * CROSSTABS didn't display value labels for column and row
917 variables. Thanks to Walter M. Gray <graywm@northernc.on.ca> for
920 * WRITE didn't write line ends. Fixed. Thanks to Dr. Dirk Melcher
921 <BZN-mdksh@t-online.de> for reporting this bug.
923 * MATCH FILES corrupted memory and dumped core on some syntax
926 * MATCH FILES should set numeric values not available to the
927 system-missing value, not to 0. Thanks to Dr. Dirk Melcher
928 <BZN-mdksh@t-online.de> for reporting this bug.
930 * KEEP didn't work properly on the SAVE procedure. Fixed. Thanks
931 to Ralf Geschke <ralf@kuerbis.org> for reporting this bug.
935 * Some systems didn't like the way open_file was coded. Thanks to
936 Hankin <hankin@rogue.consultco.com> for pointing this out.
938 * The SAVE procedure didn't save long string variables properly.
939 Fixed by this patch. Thanks to Hankin
940 <hankin@rogue.consultco.com> for this patch.
942 * Minor documentation fixes for MATCH FILES.
944 Version 0.2.2 changes since 0.2.1:
948 * Fix behavior of PRINT SPACE for negative arguments.
950 * Fix reading some unusual system files.
952 * Fix LIST problems with very long variables. Thanks to Hankin
953 <hankin@dunno.com> for this bug report.
955 * Fix problems with some string format specifiers.
957 * Fix use of $CASENUM in expressions. Thanks to Dirk Melcher
958 <BZN-mdksh@t-online.de> for reporting this bug.
960 * Additional DATA LIST FREE and DATA LIST LIST fixes. Thanks to
961 Hankin <hankin@dunno.com> again on this one.
963 * Sometimes you may encounter a PSPP script that has to be
964 interpreted in interactive mode. Now you can use the -i flag to
967 * Warnings for egcs 1.1.1 cleaned up. (However you'll get lots of
968 `unused variable' warnings under gcc 2.7.2.3, fixing this will
973 * The files in gmp need the internationalization directory in
974 their include path. Thanks to OKUJI Yoshinori
975 <okuji@kuicr.kyoto-u.ac.jp> for pointing this out.
977 Version 0.2.1 changes since 0.2.0:
981 * Remember to include examples/ directory in distribution :-)
983 * Fixed gmp compile problems for some non-i386 architectures.
984 Thanks to Hans Olav Eggestad <olav@jordforsk.nlh.no> and others
987 * DATA LIST FREE and DATA LIST LIST parsing of input files is now
988 matches the documented behavior exactly, and error messages are
989 more helpful. Thanks to Mark H. Wood <mwood@IUPUI.Edu>.
991 Version 0.2.0 changes since 0.1.0:
993 Procedures now implemented:
994 * CROSSTABS. Please see documentation for caveats.
996 Transformations and utilities now implemented:
999 * CLEAR TRANSFORMATIONS
1000 * DISPLAY (all subcommands).
1011 Support for input and output through pipes: "|command" and
1012 "command|" filenames; support for special filenames "-", "stdin",
1015 New command-line features:
1016 * New option --testing-mode: Invoke heuristics to assist testing.
1017 * New option --safer, -s: Don't allow certain unsafe operations.
1018 * New option --command=CMD, -c CMD: Perform literal command CMD.
1019 * rc file ~/.pspp/rc is executed before any other files.
1020 * Now multiple syntax files can be specified.
1022 Operator LAG is now implemented.
1024 Added missing FILE subcommand to REREAD.
1026 Table output manager completely rewritten.
1028 Device configuration file syntax changed. You will need to
1029 reinstall your `devices' file.
1031 New output driver for HTML.
1033 PostScript driver and prologue simplified.
1035 Many bugs fixed. General source-code cleanup.
1037 Added Texinfo documentation for:
1038 * PSPP system file format
1039 * PSPP portable file format
1040 * How to write input for q2c parser generator
1043 PSPP language is now fully documented. Please report any
1044 inaccuracies or omissions in the documentation.
1046 Changes for version 0.1.0:
1048 First public release. For changes from unreleased development
1049 versions, please see ONEWS.
1051 ----------------------------------------------------------------------
1052 Copyright information:
1054 Permission is granted to anyone to make or distribute verbatim
1055 copies of this document as received, in any medium, provided that
1056 the copyright notice and this permission notice are preserved, thus
1057 giving the recipient permission to redistribute in turn.
1059 Permission is granted to distribute modified versions of this
1060 document, or of portions of it, under the above conditions,
1061 provided also that they carry prominent notices stating who last
1065 version-control: never