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 * The graphical user interface uses Gtk+ version 3 instead of version 2.
10 Accordingly, it has a somewhat different look and feel.
12 * A bug, where the correlation coefficient in the paired samples t-test
13 procedure was incorrectly calculated when presented with weighted data,
16 Changes from 0.8.4 to 0.8.5:
18 * The FREQUENCIES and CROSSTABS commands can now generate barcharts.
20 * The FACTOR command can now perform PROMAX rotations.
22 * SPSS/PC+ system files are now supported on GET and other commands
23 that read SPSS system files. The pspp-convert program can now read
24 SPSS/PC+ system files. Writing the obsolete SPSS/PC+ system file
25 format is not supported.
27 * SYSFILE INFO can now read SPSS/PC+ system files and SPSS portable
30 * FREQUENCIES: A bug was fixed where an assertion failure occured
31 when an empty dataset was presented.
33 * The GRAPH command is now available. Initially it supports
34 scatterplots and histograms.
36 * The RND operator in expressions now supports additional operands
37 for rounding to values other than integers and to indicate a level
38 of rounding fuzz. The default rounding fuzz may now be controlled
39 and displayed with SET FUZZBITS and SHOW FUZZBITS, respectively.
41 Changes from 0.8.3 to 0.8.4:
43 * Formatting of SYSFILE INFO output was made easier to read.
45 * Bug fixes, including the following notable ones:
47 - FREQUENCIES works properly for string variables. (This bug was
50 - CROSSTABS now correctly computes all of the measures that it
51 offers. Some measures have been removed because they were not
54 - The NPAR TESTS calculation of significance for the RUNS
55 subcommand has been corrected.
57 - Planned comparisons in ONEWAY ANOVA now correctly handle negative
60 - The COUNT command now correctly treats missing values as
63 - Conformance fixes to Open Document output format.
65 Changes from 0.8.2 to 0.8.3:
67 * Independent T-Tests displayed the standard error of the difference
68 and the confidence interval for the unequal variances case, where
69 the equal variances case should have been. This has been fixed.
71 * REGRESSION now recognises /STATISTICS=CI(x) which causes confidence
72 intervals for the coefficients to be printed.
74 * When DESCRIPTIVES calculates Z scores, it now omits cases filtered
75 by the current FILTER settings.
77 * PSPPIRE graphical user interface improvements:
79 - Dialog boxes with source variable lists can now choose the sort
80 order; right click and select from the popup menu.
82 - File|Open now allows an encoding to be selected for opening
85 - File|Display Data File Information|External File... now allows an
86 encoding to be selected.
88 - A problem with the Means dialog has been resolved (bug #41433).
90 - Several problems related to the input of spreadsheets have been
91 fixed (bug #41657, #41620
93 * System file related improvements:
95 - With ENCODING="DETECT", SYSFILE INFO can now help the user to
96 pick an encoding for reading a system file that does not identify
99 - SYSFILE INFO now accepts an ENCODING subcommand to specify the
100 character encoding of string data in the system file.
102 - Variable labels over 255 bytes long are now accepted without
103 truncation (bug #41863).
105 - System files that contain duplicate variable names may now be
106 read successfully (bug #41475).
108 Changes from 0.8.1 to 0.8.2:
110 * Charts are now rendered with colours from the Tango palette instead
111 of fully saturated primaries.
113 * Support for new system file variants:
115 - PSPP can now read and write ZCOMPRESSED system files, which
116 compress data much more effectively than older "compressed"
117 files. (The older format is still supported.)
119 - PSPP can now decrypt encrypted system files, using the new
120 pspp-convert utility. The encrypted system file format is
121 unacceptably insecure, so to discourage its use PSPP and PSPPIRE
122 do not directly read or write this format.
124 * Missing values for long string variables are now read from and
125 written to system files in an SPSS-compatible fashion.
127 (Earlier versions of PSPP that supported missing values for long
128 string variables wrote them to system files in an SPSS-incompatible
129 way. To fix the problem, read the system file with this version of
130 PSPP and then save a new copy of it.)
132 * pspp-convert, a new standalone utility for converting SPSS system
133 and portable files to other formats, is now included. The initial
134 version supports comma-separated value files as output format.
135 pspp-convert can also decrypt encrypted system files.
139 - zlib is now a required dependency. (Previously it was optional.)
141 Changes from 0.8.0 to 0.8.1:
147 * Changes to existing commands:
149 - CROSSTABS: The requirement that one expected count must be less than five
150 before Fishers Exact Test will be reported has been removed.
152 * PSPPIRE graphical user interface improvements:
154 - A new set of icons has been contributed.
156 - Syntax windows now parse syntax in "auto" mode, which in practice
157 should mean that both "batch" and "interactive" syntax now works,
158 instead of just "interactive" syntax.
160 - The variable pane of data windows now include a Role column.
164 - System files written by IBM SPSS 21 are now read without warnings.
166 - System files written by "VOXCO INTERVIEWER 4.3" are now read
169 - PSPPIRE should now more gracefully handle syntax files that contain
172 Changes from 0.6.2 to 0.8.0:
178 - DATAFILE ATTRIBUTES
185 - LOGISTIC REGRESSION
189 - PRESERVE and RESTORE
193 - SAVE TRANSLATE to CSV and tab-delimited files
195 - VARIABLE ATTRIBUTES
197 * Changes to existing commands:
199 - AUTORECODE has a new GROUP subcommand.
201 - CROSSTABS has been re-implemented to fix numerous bugs.
203 - EXAMINE: /MISSING=LISTWISE is now the default.
205 - DO REPEAT command has been reimplemented. Now, when DO REPEAT
206 contains an INCLUDE or INSERT command, substitutions are not
207 applied to the included file.
209 - FILE HANDLE has a new ENDS subcommand to select CR or CRLF new-lines.
211 - HOST has been updated to use more modern syntax.
213 - Most commands that work with data files now support a new
216 - MISSING VALUES can now assign missing values to long string
219 - ONEWAY: the POSTHOC subcommand is now implemented.
221 - The following new subcommands to NPAR TESTS have been implemented:
222 COCHRAN, FRIEDMAN, JONCKHEERE-TERPSTRA, KENDALL, KRUSKAL-WALLIS, MANN-WHITNEY,
223 MCNEMAR, SIGN, WILCOXON, and RUNS
225 - SET and SHOW no longer have ENDCMD, NULLINE, PROMPT, CPROMPT, and
226 DPROMPT subcommands. The defaults are now fixed values.
228 - SHOW now has a JOURNAL subcommand, to show the location of the
231 - VALUE LABELS can now assign value labels to long string
234 * Other language changes:
236 - The new DATASET commands replace the "scratch file" PSPP
237 extension, which is no longer supported.
239 - Strings may now include arbitrary Unicode code points specified
240 in hexadecimal, using the syntax U'hhhh'. For example, Unicode
241 code point U+1D11E, the musical G clef character, may be
242 expressed as U'1D11E'.
244 See the "Tokens" section in the PSPP manual for more information.
246 - In previous versions of PSPP, in a string expressed in
247 hexadecimal with X'hh' syntax, the hexadecimal digits expressed
248 bytes in the locale encoding. In this version of PSPP, X'hh'
249 syntax always expresses bytes in UTF-8 encoding.
251 See the "Tokens" section in the PSPP manual for more information.
253 * PSPPIRE graphical user interface improvements:
255 - Added support for non-ASCII characters in strings, labels and
258 - A "Split Window" function is available, which makes it easier to
259 see different parts of a large data file.
261 - Data files can now be opened by specifing their name as the first
262 argument. This means that on a properly configured desktop, double
263 clicking on an icon will open the file.
265 - Foreign formats, such as Gnumeric, OpenDocument and CSV can be imported
266 via using an "intelligent" application assistant dialog.
270 - The new "cairo" output driver supports output in PostScript, PDF,
271 and SVG formats. Its functionality is a superset of that of the
272 "postscript" driver, which has been removed. You must have Cairo
273 and Pango installed to build the "cairo" driver.
275 - Charts are now produced with Cairo and Pango, instead of libplot.
276 Without them, the new graphing features will not work. If you do
277 not have Cairo and Pango installed, you must run `configure' with
280 - The plain text output driver now properly supports multibyte UTF-8
281 characters, including double-width characters and combining
284 - Output to OpenDocument format is now supported.
286 - The HTML output is much improved.
288 * The "pspp" program has a new option --batch (or -b) that selects
289 "batch" syntax mode. In previous versions of PSPP this syntax mode
290 was the default. Now a new "auto" syntax mode is the default. In
291 "auto" mode, PSPP interprets most syntax files correctly regardless
292 of their intended syntax mode.
294 See the "Syntax Variants" section in the PSPP manual for more
297 * The "pspp" program has a new option --syntax-encoding that
298 specifies the encoding for syntax files listed on the command line,
299 as well as the default encoding for syntax files included with
300 INCLUDE or INSERT. The default is to accept the system locale
301 encoding, UTF-8, UTF-16, or UTF-32, automatically detecting which
302 one the system file uses.
304 See the documentation for the INSERT command in the PSPP manual for
307 * Text data files that PRINT and WRITE creates now use the system
308 native line ends by default (CRLF on Windows, LF only elsewhere).
309 Use the new ENDS subcommand on FILE HANDLE to override the default.
311 * A new Perl module allows Perl programs to read and write PSPP
314 * A tutorial chapter has been added to the user manual.
316 Changes from 0.6.1 to 0.6.2:
320 - Dutch, thanks to Harry Thijssen.
322 - Brazilian Portuguese, thanks to Michel Boaventura.
324 Thanks for translations are also due to the coordinators at
325 translationproject.org.
327 * Statistical bug fixes:
329 - REGRESSION: Report correct standard error of the estimate (bug
332 - T-TEST: Report correct significance of paired sample T-test in
333 the common case (bug #26936) and corner cases. Thanks to Mike
334 Griffiths and Matej Cepl for reporting these bugs.
336 * Build fixes and changes:
338 - Fix build with GTK+ 2.17.4 and later.
340 - Make running "make" after running "configure" with different
341 settings reliably rebuild version.c.
343 - Cygwin and MinGW build fixes.
345 - Fixes for building with recent gnulib.
347 - The Makefile now honors two new variables, PSPP_LDFLAGS and
348 PSPPIRE_LDFLAGS, that affect linking of the PSPP and PSPPIRE
349 binaries, respectively. This makes building easier for some
352 - Fixes for "configure --enable-relocatable" (bug #25508).
354 * Data file bug fixes and changes:
356 - Fix reading text data files that contain a mix of white space
357 and commas. Now "a ,b" is treated as two fields containing "a"
358 and "b"; previously it was treated as three, with an empty field
361 - Fix writing corrupted .sav files on Windows.
363 - Fix writing variable labels longer than 252 bytes to save files.
364 Thanks to Robert Westlund for reporting this bug.
366 - Fix writing corrupted .por files (bug #26034).
368 - Fix reading .por files whose initial lines are not padded out
369 with spaces as expected.
371 - PSPP will no longer issue warnings about some .sav file records
372 or values that it does not understand. These warnings were
373 harmless, but needlessly alarmed some users.
375 - Fix crash reading empty string fields from PostgreSQL databases.
377 * Bug fixes that affect PSPP and PSPPIRE:
379 - Users may now control precision of output statistics. Instead
380 of hard coding the width and decimals of output numbers, respect
381 the default format in most instances. Counts are now normally
382 displayed with the format of the weight variable, if any.
384 - Fix crash when an INSERT command specifies the name of a file
385 that does not exist (bug #24569).
387 - Fix crash when CROSSTABS specifies a long-string variable (bugs
390 - Fix crash drawing pie charts with many segments.
392 - Fix crash when NUMERIC specifies an invalid format.
394 * PSPPIRE bug fixes and changes:
396 - On Windows, write the output file to the user's home directory
397 instead of the current directory, to better match user
400 - Some data editor fixes.
404 - Fix typo in BINOMIAL section of user manual (bug #25892).
406 Changes from 0.6.0 to 0.6.1:
408 * Statistical bug fixes:
410 - Report correct standardized regression coefficients in linear
411 regression output (bug #23567).
413 * Bug fixes that affect PSPP and PSPPIRE:
415 - Avoid crash with pie charts (bug #24014).
417 - Don't append % to count totals (bug #24003).
419 - Don't crash on bad input (bug #24031).
421 - Don't crash if "end data." is not left aligned (bug #24115).
423 - Change default workspace value to 64 MB, to avoid unnecessary
424 disk accesses on modern machines.
428 - Add ".sav" or ".por" suffix to filename when saving with Save_As
431 - Make it possible to reopen the output window on Windows (bug
434 - A POSIX regular expression library is now included and used
435 automatically if the host does not have one or has one that is
438 * Build fixes and changes:
440 - Work around bug in GSL that prevented build with recent GCC
441 versions without manually adding -fgnu89-inline to CFLAGS.
443 - Also warn about missing prerequisites as we encounter them (bug
446 - Distribute necessary files to allow users working from the
447 distributed tarball to configure with --enable-gui-tools.
449 - Append $(EXEEXT_FOR_BUILD) to output file name when building
450 q2c, fixing build problems on Windows.
452 - GSL 1.8 or later is now required.
454 - Build errors with --enable-relocatable were fixed.
456 * The German translations were removed, since native German speakers
457 found them too poor to be useful.
459 Changes from 0.4.0 to 0.6.0:
461 * The PSPP license is now version 3 or later of the GNU General
462 Public License. Previously, it was version 2 or later.
464 * PSPP now has a graphical interface, called PSPPIRE. This
465 interface allows you to enter data and variable definitions
466 interactively. Commands may be executed in syntax form, or by
467 using the interactive dialog boxes available from the dropdown
470 * A few sample syntax files are now included in the `examples'
473 * Numerous major and minor bugs have been fixed.
477 * The INSTALL file now reflects the details of how to install
478 PSPP. It is a tailored version of the generic installation
479 instructions, instead of a verbatim copy.
481 * iconv, which is ordinarily installed as part of a Unix-like
482 system, is now required. If you don't have it already, you can
483 install GNU libiconv (http://www.gnu.org/software/libiconv/).
485 * libxml2 and zlib are new optional dependencies. They are
486 required to use PSPP's support for reading Gnumeric files.
488 Statistical procedure changes:
490 * REGRESSION is a new procedure for fitting linear models to data
491 via least-squares estimation.
493 * NPAR TESTS is a new procedure for non-parametric tests. In this
494 release, it supports binomial and chi-square tests.
496 * RANK is a new procedure to rank variables. It supports numerous
499 * FREQUENCIES can now output histograms and pie charts. These
500 features were present in earlier releases, but not documented.
502 User interface changes:
504 * In many situations where PSPP once terminated with a fatal
505 error, PSPP now recovers and continues execution.
507 * PSPP is now able to start up and run even if it cannot find its
510 * Journaling of interactive commands to a disk file is now
511 implemented. By default, journaling is enabled, to a file named
512 `pspp.jnl' in the current directory. SET JOURNAL may be used to
515 * The use of `+' between syntax file names on the command line to
516 prevent the dictionary from being cleared between their
517 executions is no longer supported. All syntax files are now
518 executed as if `+' had been specified.
520 * The -d/--define and -u/--undef command line options are no
521 longer supported. Instead, use /usr/bin/env or shell primitives
522 to define or clear environment variables before invoking PSPP.
524 * If a syntax file named named `rc' is found in a configuration
525 directory (such as $HOME/.pspp), it is executed before any
526 syntax file specified on the command line. The -r or
527 --no-statrc command line option may be used to disable this
532 * Output configuration options have changed. Please refer to the
533 manual for a full description of the available options.
535 In consequence, you will need to reinstall your "devices" file.
536 "make install" will do this for you.
538 * Most error messages are now written to PSPP output files by
539 default. SET ERROR can be used to disable this behavior.
541 * When invoked interactively, PSPP now by default produces output
542 on the terminal, piping it through the "more" program.
543 Previously, by default output was written only to file
544 pspp.list. On most terminals, the page length used for output
545 automatically adapts to the terminal size, even if the terminal
550 - This driver now supports charts in output. Charts are written
551 as separate files that the main output file refers to. By
552 default, charts are written in PNG format to files named
553 pspp-1.png, pspp-2.png, and so on.
555 - Configurations are provided that use VT100 (and xterm)
556 line-drawing characters in tables. The option "-o list-vt100"
557 requests use of this device for output to pspp.list.
561 - The default paper size is now determined using the PAPERSIZE
562 environment variable, or the LC_PAPER locale category on
563 systems that support it. If these are not set, the default is
564 now A4, instead of US letter. To make US letter the default,
565 set PAPERSIZE to "letter" in your environment.
567 - Font metrics are now read from AFM files, instead of
568 Groff-format metrics files. PostScript fonts can now be
571 In consequence, you will need to install an AFM file for each
572 font used in PostScript output. "make install" will install
573 AFM files for the standard PostScript fonts, including the
574 ones that the PostScript driver uses by default.
576 - Standard paper sizes no longer need to be specified through a
577 configuration file. The "papersize" configuration file is no
578 longer needed, or supported.
580 - The PostScript prologue is no longer obtained from the
581 "ps-prologue" configuration file. This configuration file is
582 no longer needed, or supported.
586 - The HTML prologue is no longer obtained from the
587 "html-prologue" configuration file. This configuration file
588 is no longer needed, or supported.
590 Command language changes:
592 * The following commands are new:
594 - GET DATA, which currently supports reading Gnumeric files and
595 text data files. It will be extended later to read other
596 types of foreign data.
598 - CD, to change the current directory.
600 - INSERT, to execute a syntax file.
602 - DELETE VARIABLES, to remove variables from the active file
605 - ADD DOCUMENT, to add text to active file documents.
607 - CLOSE FILE HANDLE (a PSPP extension; see below).
609 - XEXPORT, a PSPP extension that is a transformation equivalent
612 * The following functions for transformation expressions are new:
614 - DATEDIFF, for computing the difference of two dates.
616 - DATESUM, for advancing a date by a specified duration.
618 - VALUELABEL, to obtain the value label for a value.
620 * PSPP now supports very long string variables (over 255 bytes
623 * MATCH FILES now supports the FIRST and LAST subcommands.
625 * Previous versions of PSPP prohibited using commands to both read and
626 write a single file at the same time. Now, PSPP allows this, and
627 the new version of the file atomically replaces the old version.
629 * The following commands are no longer available. They will be
630 re-implemented in a later release:
632 - CLEAR TRANSFORMATIONS
638 * The PROCESS IF command, which was deprecated, has been removed.
639 You may replace any usage of it by SELECT IF following
640 TEMPORARY, which has the same effect.
642 * The output format for variables created by VECTOR may now be
643 specified as part of the VECTOR syntax.
645 "Scratch files", a new PSPP extension:
647 A scratch file, like a system file, consists of a dictionary and
648 any number of cases. Small scratch files are stored in memory;
649 one that grows too large is written to disk. By default, any file
650 handle whose name begins with # is assumed to refer to a scratch
653 Scratch files can be used just about anywhere a system or portable
654 file can be used. Also, portable files are now allowed in most
655 places that system files were allowed in previous PSPP version.
657 A new CLOSE FILE HANDLE command allows the storage associated with
658 scratch files to be freed. It also allows file handles to be
659 reassigned to new files.
661 For more information on scratch files, refer to the "File Handles"
662 section in the PSPP manual. For specifics of what commands now
663 allow what kinds of files to be specified, refer to the
664 documentation on those particular commands.
668 * Binary formats and IBM/360 formats, including ASCII/EBCDIC
669 translation, are now supported. Use FILE HANDLE to specify the
670 format of these files.
672 * Little-endian, big-endian, and VAX-endian formats are now
673 supported for integer binary formats when reading and writing
674 data files. The new RIB and WIB subcommands on the SET command
675 control endianness of integer data. The default is the host's
678 * IEEE 754, VAX, and IBM hexadecimal formats are now supported for
679 floating point binary formats when reading and writing data
680 files. The new RRB and WRB subcommands on the SET command
681 control the floating point format. The default is the host's
682 native floating point format.
684 * DATA LIST now supports the SKIP subcommand, to skip records at
685 the beginning of a file. For compatibility, DATA LIST now
686 treats N format as F format for FREE and LIST format input.
688 * The SAVE and XSAVE commands now support the UNSELECTED,
689 PERMISSIONS, NAMES, and MAP subcommands.
691 * The EXPORT command has been re-implemented to obtain better
692 results. Support for the UNSELECTED, DIGITS, and TYPE
693 subcommands has been added.
695 * For compatibility, PRINT now inserts a space at the beginning of
696 every output line, even lines that would otherwise be blank,
697 when OUTFILE is specified. (The behavior of WRITE is
700 * For compatibility, PRINT EJECT now inserts the digit `1' at the
701 beginning of each line that should begin a new page.
703 * For compatibility, WRITE now outputs the system-missing value as
704 a field filled with spaces. Binary formats are an exception.
705 (The behavior of PRINT is unchanged.)
709 * Input and output format descriptions have been rewritten. They
710 now precisely describe what is accepted on input and written on
713 * The descriptions of the PSPP system and portable file formats
714 have been extensively revised and improved.
716 For developers, the build system now requires Autoconf 2.60 and
719 Changes from 0.3.0 to 0.4.0:
721 Changes in build dependencies:
723 * The GNU Scientific Library (libgsl), version 1.6 or later, is
726 * libplot from GNU plotutils is optional. Without it, the new
727 graphing features will not work. If you do not have it
728 installed, you must run `configure' with --without-libplot.
730 * libgmp2 is no longer a dependency.
732 Newly implemented commands and statistical features:
734 * EXAMINE, including its graphing features.
736 * FREQUENCIES now supports percentiles.
744 * SORT CASES now sorts stably, that is, two cases with equal sort
745 criteria will be in the same relative order before and after the
748 * T-TEST (re-written).
750 * DATE and USE. These commands are parsed but otherwise ignored,
751 to enhance compatibility with certain command files that invoke
754 * VARIABLE WIDTH, VARIABLE ALIGNMENT, and VARIABLE LEVEL. These
755 currently have no effect on PSPP output, but their values are
756 written to and read from system files and thus may affect
757 third-party software.
759 * SET EPOCH implemented.
761 * DATA LIST FREE and DATA LIST LIST now support arbitrary field
764 * FILE HANDLE now supports custom tab widths.
766 Long variable names (and other identifiers) are now supported. Up
767 to the first 64 bytes of each identifier is significant. PSPP now
768 reads and writes system files compatible with SPSS version 12.
770 New --algorithm and --syntax command line options allow
771 SPSS-compatible or enhanced modes to be selected.
773 Support for transformation expressions has been rewritten and
774 significantly improved. Refer to the manual for details.
776 Calculation of moments (mean, standard deviation, kurtosis,
777 skewness) has been rewritten and should now be more accurate. In
778 --algorithm=enhanced mode moments may be more accurate than SPSS in
781 Numerous bugs have been fixed, too many to mention here. Many new
782 tests have been added, leading to the discovery and fixing of many
785 The ASCII output driver can now squeeze multiple blank lines into
788 Much of the code has been rewritten and refactored. It is now much
791 The FILE TYPE and REPEATING DATA commands have been disabled for
792 this release because their implementations were deemed too buggy to
793 be useful. They will be fixed and replaced in a future release.
795 New pspp-mode for Emacs (in pspp-mode.el).
797 Added rudimentary command-line completion for interactive input.
799 lib/julcal and lib/dcdflib are no longer used, so they have been
802 For developers, the build system now requires Autoconf 2.58 and
803 Automake 1.7. The included gettext has been updated to version
806 Some reports state that Texinfo 4.8, the latest version, may be
807 necessary to successfully format the documentation on some systems.
809 Version 0.3.0 changes since 0.2.3:
813 * Using alphanumeric variables in functions under AGGREGATE
816 * Under certain circumstances, the final case would be omitted
817 from the results of an AGGREGATE operation. Fixed.
819 * Undefined behavior was invoked by referencing a freed pointer
820 under certain circumstances. Fixed.
822 * A wrong record size was displayed when paging the active file to
825 * Not having enough temporary space for sorting caused a core
828 * Syntax errors in function descriptions on AGGREGATE caused core
831 * A null pointer was dereferenced, causing a core dump, when
832 PERCENTILES was specified on FREQUENCIES. This fixes the
833 problem, but PSPP still doesn't calculate percentiles.
835 * SORT always sorted in ascending order. Fixed.
837 * Some minor memory leaks in the expression parser were removed.
839 * Many assertions fixed for strict ANSI C compliance.
843 * SET ECHO ON now implemented, but turned off by default.
845 * PRINT specifier supported on END REPEAT.
849 * System libgmp2 library is used if installed instead of
850 unconditionally using the included libgmp2 subset.
852 * Extensive code cleanup, which continues.
854 * Added CORRELATIONS command parser, but not implemented.
856 Version 0.2.3 changes since 0.2.2:
860 * SPLIT FILE with a string variable caused a core dump. Fixed.
862 * Nested INCLUDEs didn't work. Fixed.
864 * The MATCH FILES procedure set the values of variables not present
865 to 0. It should have been SYSMIS. This is now fixed.
867 * The REMARK command was too aggressive about skipping lines. It
868 didn't like being the last command in a file.
870 * Comment parsing wasn't consistent with the rest of the code in its
871 idea of where one command ends and another starts. This meant
872 that sometimes commands would be mysteriously ignored. Thanks to
873 Dr. Dirk Melcher <BZN-mdksh@t-online.de> for reporting this bug.
875 * The TABLE subcommand on MATCH FILES worked only erratically at
876 best. This fixes it. Thanks to Dr. Dirk Melcher
877 <BZN-mdksh@t-online.de> for reporting this bug.
879 * VARIABLE LABELS rejected a slash before the first variable
880 specification, contradicting the documentation. Thanks to Walter
881 M. Gray <graywm@northernc.on.ca> for reporting this bug.
883 * Because of an incorrect optimization in memory allocation,
884 CROSSTABS sometimes segfaulted when asked to output multiple
885 tables. Thanks to Walter M. Gray <graywm@northernc.on.ca> for
888 * CROSSTABS didn't display value labels for column and row
889 variables. Thanks to Walter M. Gray <graywm@northernc.on.ca> for
892 * WRITE didn't write line ends. Fixed. Thanks to Dr. Dirk Melcher
893 <BZN-mdksh@t-online.de> for reporting this bug.
895 * The TABLE subcommand on MATCH FILES worked only erratically at
896 best. This fixes it. Thanks to Dr. Dirk Melcher
897 <BZN-mdksh@t-online.de> for reporting this bug.
899 * VARIABLE LABELS rejected a slash before the first variable
900 specification, contradicting the documentation. Thanks to Walter
901 M. Gray <graywm@northernc.on.ca> for reporting this bug.
903 * Because of an incorrect optimization in memory allocation,
904 CROSSTABS sometimes segfaulted when asked to output multiple
905 tables. Thanks to Walter M. Gray <graywm@northernc.on.ca> for
908 * CROSSTABS didn't display value labels for column and row
909 variables. Thanks to Walter M. Gray <graywm@northernc.on.ca> for
912 * WRITE didn't write line ends. Fixed. Thanks to Dr. Dirk Melcher
913 <BZN-mdksh@t-online.de> for reporting this bug.
915 * MATCH FILES corrupted memory and dumped core on some syntax
918 * MATCH FILES should set numeric values not available to the
919 system-missing value, not to 0. Thanks to Dr. Dirk Melcher
920 <BZN-mdksh@t-online.de> for reporting this bug.
922 * KEEP didn't work properly on the SAVE procedure. Fixed. Thanks
923 to Ralf Geschke <ralf@kuerbis.org> for reporting this bug.
927 * Some systems didn't like the way open_file was coded. Thanks to
928 Hankin <hankin@rogue.consultco.com> for pointing this out.
930 * The SAVE procedure didn't save long string variables properly.
931 Fixed by this patch. Thanks to Hankin
932 <hankin@rogue.consultco.com> for this patch.
934 * Minor documentation fixes for MATCH FILES.
936 Version 0.2.2 changes since 0.2.1:
940 * Fix behavior of PRINT SPACE for negative arguments.
942 * Fix reading some unusual system files.
944 * Fix LIST problems with very long variables. Thanks to Hankin
945 <hankin@dunno.com> for this bug report.
947 * Fix problems with some string format specifiers.
949 * Fix use of $CASENUM in expressions. Thanks to Dirk Melcher
950 <BZN-mdksh@t-online.de> for reporting this bug.
952 * Additional DATA LIST FREE and DATA LIST LIST fixes. Thanks to
953 Hankin <hankin@dunno.com> again on this one.
955 * Sometimes you may encounter a PSPP script that has to be
956 interpreted in interactive mode. Now you can use the -i flag to
959 * Warnings for egcs 1.1.1 cleaned up. (However you'll get lots of
960 `unused variable' warnings under gcc 2.7.2.3, fixing this will
965 * The files in gmp need the internationalization directory in
966 their include path. Thanks to OKUJI Yoshinori
967 <okuji@kuicr.kyoto-u.ac.jp> for pointing this out.
969 Version 0.2.1 changes since 0.2.0:
973 * Remember to include examples/ directory in distribution :-)
975 * Fixed gmp compile problems for some non-i386 architectures.
976 Thanks to Hans Olav Eggestad <olav@jordforsk.nlh.no> and others
979 * DATA LIST FREE and DATA LIST LIST parsing of input files is now
980 matches the documented behavior exactly, and error messages are
981 more helpful. Thanks to Mark H. Wood <mwood@IUPUI.Edu>.
983 Version 0.2.0 changes since 0.1.0:
985 Procedures now implemented:
986 * CROSSTABS. Please see documentation for caveats.
988 Transformations and utilities now implemented:
991 * CLEAR TRANSFORMATIONS
992 * DISPLAY (all subcommands).
1003 Support for input and output through pipes: "|command" and
1004 "command|" filenames; support for special filenames "-", "stdin",
1007 New command-line features:
1008 * New option --testing-mode: Invoke heuristics to assist testing.
1009 * New option --safer, -s: Don't allow certain unsafe operations.
1010 * New option --command=CMD, -c CMD: Perform literal command CMD.
1011 * rc file ~/.pspp/rc is executed before any other files.
1012 * Now multiple syntax files can be specified.
1014 Operator LAG is now implemented.
1016 Added missing FILE subcommand to REREAD.
1018 Table output manager completely rewritten.
1020 Device configuration file syntax changed. You will need to
1021 reinstall your `devices' file.
1023 New output driver for HTML.
1025 PostScript driver and prologue simplified.
1027 Many bugs fixed. General source-code cleanup.
1029 Added Texinfo documentation for:
1030 * PSPP system file format
1031 * PSPP portable file format
1032 * How to write input for q2c parser generator
1035 PSPP language is now fully documented. Please report any
1036 inaccuracies or omissions in the documentation.
1038 Changes for version 0.1.0:
1040 First public release. For changes from unreleased development
1041 versions, please see ONEWS.
1043 ----------------------------------------------------------------------
1044 Copyright information:
1046 Permission is granted to anyone to make or distribute verbatim
1047 copies of this document as received, in any medium, provided that
1048 the copyright notice and this permission notice are preserved, thus
1049 giving the recipient permission to redistribute in turn.
1051 Permission is granted to distribute modified versions of this
1052 document, or of portions of it, under the above conditions,
1053 provided also that they carry prominent notices stating who last
1057 version-control: never