1 PSPP NEWS -- history of user-visible changes.
2 Copyright (C) 1996-2000, 2008-2016 Free Software Foundation, Inc.
3 See the end for copying conditions.
5 Please send PSPP bug reports to bug-gnu-pspp@gnu.org.
7 Changes from 0.10.1 to 0.10.2:
11 Changes from 0.10.0 to 0.10.1:
13 * Bug fixes, including the following:
15 - A bug where certain dialog boxes could not be properly populated
18 - Various commands have been hardened against errors when called
21 * Translation updates. Thanks to our translators!
23 Changes from 0.8.5 to 0.10.0:
25 * The QUICK CLUSTER command has a /PRINT subcommand which shows
26 the initial cluster centres and the final cluster membership of
27 each case. The clustering algorithm has also been updated, so
28 as to produce better separated clusters.
30 * A Russian localisation has been contributed.
32 * The GRAPH command now has a /BAR subcommand to draw barcharts.
34 * If the DECIMAL character is set to COMMA then the ',' character
35 will not be treated as a separator by DATA LIST.
37 * The graphical user interface (psppire) has been changed as follows:
39 - It now uses Gtk+ version 3 instead of version 2. Accordingly, it has a
40 somewhat different look and feel.
42 - There is now a Graphs menu to access the GRAPH command.
44 - The status of dialog box widgets are now preserved between calls
45 to the same dialog box for the same dataset.
47 - The dialog box for the Logistic Regression command will now
48 infer that string variables or any varible with a "measure"
49 of Nominal or Ordinal are to be treated as categorical variables
50 and will generate syntax accordingly.
52 * The pspp-convert utility can now decrypt encrypted syntax files.
53 The encrypted syntax file format is unacceptably insecure, so to
54 discourage its use PSPP and PSPPIRE do not directly read or write
61 * The following functions for transformation expressions are new:
63 - REPLACE, for search-and-replace of one string with another.
65 - STRUNC, to truncate a string and trim trailing spaces.
67 - MEDIAN, to compute the median of its arguments.
69 - The TRUNC function in expressions now supports additional arguments
70 for truncating to values other than integers and to indicate a level
71 of rounding fuzz. The default rounding fuzz may now be controlled
72 and displayed with SET FUZZBITS and SHOW FUZZBITS, respectively.
74 * Bug fixes, including the following notable ones:
76 - The correlation coefficient in the paired samples t-test
77 procedure is now correctly calculated when presented with
80 - The ESCAPE subcommand has been removed from GET DATA /TYPE=TXT.
81 For compatibility, the behavior that ESCAPE enabled is now the
82 default and only supported behavior.
84 - Rendering of the variable and data sheets in right-to-left locales
87 - The Mann-Whitney test, when run on a dataset containing values
88 of the group variable, other than those defining the test groups,
89 would incorrectly calculate the ranks. This has been corrected.
91 * The IMPORTCASES subcommand on GET DATA is now ignored, for
94 Changes from 0.8.4 to 0.8.5:
96 * The FREQUENCIES and CROSSTABS commands can now generate barcharts.
98 * The FACTOR command can now perform PROMAX rotations.
100 * SPSS/PC+ system files are now supported on GET and other commands
101 that read SPSS system files. The pspp-convert program can now read
102 SPSS/PC+ system files. Writing the obsolete SPSS/PC+ system file
103 format is not supported.
105 * SYSFILE INFO can now read SPSS/PC+ system files and SPSS portable
108 * FREQUENCIES: A bug was fixed where an assertion failure occured
109 when an empty dataset was presented.
111 * The GRAPH command is now available. Initially it supports
112 scatterplots and histograms.
114 * The RND operator in expressions now supports additional operands
115 for rounding to values other than integers and to indicate a level
116 of rounding fuzz. The default rounding fuzz may now be controlled
117 and displayed with SET FUZZBITS and SHOW FUZZBITS, respectively.
119 Changes from 0.8.3 to 0.8.4:
121 * Formatting of SYSFILE INFO output was made easier to read.
123 * Bug fixes, including the following notable ones:
125 - FREQUENCIES works properly for string variables. (This bug was
126 introduced in 0.8.2.)
128 - CROSSTABS now correctly computes all of the measures that it
129 offers. Some measures have been removed because they were not
132 - The NPAR TESTS calculation of significance for the RUNS
133 subcommand has been corrected.
135 - Planned comparisons in ONEWAY ANOVA now correctly handle negative
138 - The COUNT command now correctly treats missing values as
141 - Conformance fixes to Open Document output format.
143 Changes from 0.8.2 to 0.8.3:
145 * Independent T-Tests displayed the standard error of the difference
146 and the confidence interval for the unequal variances case, where
147 the equal variances case should have been. This has been fixed.
149 * REGRESSION now recognises /STATISTICS=CI(x) which causes confidence
150 intervals for the coefficients to be printed.
152 * When DESCRIPTIVES calculates Z scores, it now omits cases filtered
153 by the current FILTER settings.
155 * PSPPIRE graphical user interface improvements:
157 - Dialog boxes with source variable lists can now choose the sort
158 order; right click and select from the popup menu.
160 - File|Open now allows an encoding to be selected for opening
163 - File|Display Data File Information|External File... now allows an
164 encoding to be selected.
166 - A problem with the Means dialog has been resolved (bug #41433).
168 - Several problems related to the input of spreadsheets have been
169 fixed (bug #41657, #41620
171 * System file related improvements:
173 - With ENCODING="DETECT", SYSFILE INFO can now help the user to
174 pick an encoding for reading a system file that does not identify
177 - SYSFILE INFO now accepts an ENCODING subcommand to specify the
178 character encoding of string data in the system file.
180 - Variable labels over 255 bytes long are now accepted without
181 truncation (bug #41863).
183 - System files that contain duplicate variable names may now be
184 read successfully (bug #41475).
186 Changes from 0.8.1 to 0.8.2:
188 * Charts are now rendered with colours from the Tango palette instead
189 of fully saturated primaries.
191 * Support for new system file variants:
193 - PSPP can now read and write ZCOMPRESSED system files, which
194 compress data much more effectively than older "compressed"
195 files. (The older format is still supported.)
197 - PSPP can now decrypt encrypted system files, using the new
198 pspp-convert utility. The encrypted system file format is
199 unacceptably insecure, so to discourage its use PSPP and PSPPIRE
200 do not directly read or write this format.
202 * Missing values for long string variables are now read from and
203 written to system files in an SPSS-compatible fashion.
205 (Earlier versions of PSPP that supported missing values for long
206 string variables wrote them to system files in an SPSS-incompatible
207 way. To fix the problem, read the system file with this version of
208 PSPP and then save a new copy of it.)
210 * pspp-convert, a new standalone utility for converting SPSS system
211 and portable files to other formats, is now included. The initial
212 version supports comma-separated value files as output format.
213 pspp-convert can also decrypt encrypted system files.
217 - zlib is now a required dependency. (Previously it was optional.)
219 Changes from 0.8.0 to 0.8.1:
225 * Changes to existing commands:
227 - CROSSTABS: The requirement that one expected count must be less than five
228 before Fishers Exact Test will be reported has been removed.
230 * PSPPIRE graphical user interface improvements:
232 - A new set of icons has been contributed.
234 - Syntax windows now parse syntax in "auto" mode, which in practice
235 should mean that both "batch" and "interactive" syntax now works,
236 instead of just "interactive" syntax.
238 - The variable pane of data windows now include a Role column.
242 - System files written by IBM SPSS 21 are now read without warnings.
244 - System files written by "VOXCO INTERVIEWER 4.3" are now read
247 - PSPPIRE should now more gracefully handle syntax files that contain
250 Changes from 0.6.2 to 0.8.0:
256 - DATAFILE ATTRIBUTES
263 - LOGISTIC REGRESSION
267 - PRESERVE and RESTORE
271 - SAVE TRANSLATE to CSV and tab-delimited files
273 - VARIABLE ATTRIBUTES
275 * Changes to existing commands:
277 - AUTORECODE has a new GROUP subcommand.
279 - CROSSTABS has been re-implemented to fix numerous bugs.
281 - EXAMINE: /MISSING=LISTWISE is now the default.
283 - DO REPEAT command has been reimplemented. Now, when DO REPEAT
284 contains an INCLUDE or INSERT command, substitutions are not
285 applied to the included file.
287 - FILE HANDLE has a new ENDS subcommand to select CR or CRLF new-lines.
289 - HOST has been updated to use more modern syntax.
291 - Most commands that work with data files now support a new
294 - MISSING VALUES can now assign missing values to long string
297 - ONEWAY: the POSTHOC subcommand is now implemented.
299 - The following new subcommands to NPAR TESTS have been implemented:
300 COCHRAN, FRIEDMAN, JONCKHEERE-TERPSTRA, KENDALL, KRUSKAL-WALLIS, MANN-WHITNEY,
301 MCNEMAR, SIGN, WILCOXON, and RUNS
303 - SET and SHOW no longer have ENDCMD, NULLINE, PROMPT, CPROMPT, and
304 DPROMPT subcommands. The defaults are now fixed values.
306 - SHOW now has a JOURNAL subcommand, to show the location of the
309 - VALUE LABELS can now assign value labels to long string
312 * Other language changes:
314 - The new DATASET commands replace the "scratch file" PSPP
315 extension, which is no longer supported.
317 - Strings may now include arbitrary Unicode code points specified
318 in hexadecimal, using the syntax U'hhhh'. For example, Unicode
319 code point U+1D11E, the musical G clef character, may be
320 expressed as U'1D11E'.
322 See the "Tokens" section in the PSPP manual for more information.
324 - In previous versions of PSPP, in a string expressed in
325 hexadecimal with X'hh' syntax, the hexadecimal digits expressed
326 bytes in the locale encoding. In this version of PSPP, X'hh'
327 syntax always expresses bytes in UTF-8 encoding.
329 See the "Tokens" section in the PSPP manual for more information.
331 * PSPPIRE graphical user interface improvements:
333 - Added support for non-ASCII characters in strings, labels and
336 - A "Split Window" function is available, which makes it easier to
337 see different parts of a large data file.
339 - Data files can now be opened by specifing their name as the first
340 argument. This means that on a properly configured desktop, double
341 clicking on an icon will open the file.
343 - Foreign formats, such as Gnumeric, OpenDocument and CSV can be imported
344 via using an "intelligent" application assistant dialog.
348 - The new "cairo" output driver supports output in PostScript, PDF,
349 and SVG formats. Its functionality is a superset of that of the
350 "postscript" driver, which has been removed. You must have Cairo
351 and Pango installed to build the "cairo" driver.
353 - Charts are now produced with Cairo and Pango, instead of libplot.
354 Without them, the new graphing features will not work. If you do
355 not have Cairo and Pango installed, you must run `configure' with
358 - The plain text output driver now properly supports multibyte UTF-8
359 characters, including double-width characters and combining
362 - Output to OpenDocument format is now supported.
364 - The HTML output is much improved.
366 * The "pspp" program has a new option --batch (or -b) that selects
367 "batch" syntax mode. In previous versions of PSPP this syntax mode
368 was the default. Now a new "auto" syntax mode is the default. In
369 "auto" mode, PSPP interprets most syntax files correctly regardless
370 of their intended syntax mode.
372 See the "Syntax Variants" section in the PSPP manual for more
375 * The "pspp" program has a new option --syntax-encoding that
376 specifies the encoding for syntax files listed on the command line,
377 as well as the default encoding for syntax files included with
378 INCLUDE or INSERT. The default is to accept the system locale
379 encoding, UTF-8, UTF-16, or UTF-32, automatically detecting which
380 one the system file uses.
382 See the documentation for the INSERT command in the PSPP manual for
385 * Text data files that PRINT and WRITE creates now use the system
386 native line ends by default (CRLF on Windows, LF only elsewhere).
387 Use the new ENDS subcommand on FILE HANDLE to override the default.
389 * A new Perl module allows Perl programs to read and write PSPP
392 * A tutorial chapter has been added to the user manual.
394 Changes from 0.6.1 to 0.6.2:
398 - Dutch, thanks to Harry Thijssen.
400 - Brazilian Portuguese, thanks to Michel Boaventura.
402 Thanks for translations are also due to the coordinators at
403 translationproject.org.
405 * Statistical bug fixes:
407 - REGRESSION: Report correct standard error of the estimate (bug
410 - T-TEST: Report correct significance of paired sample T-test in
411 the common case (bug #26936) and corner cases. Thanks to Mike
412 Griffiths and Matej Cepl for reporting these bugs.
414 * Build fixes and changes:
416 - Fix build with GTK+ 2.17.4 and later.
418 - Make running "make" after running "configure" with different
419 settings reliably rebuild version.c.
421 - Cygwin and MinGW build fixes.
423 - Fixes for building with recent gnulib.
425 - The Makefile now honors two new variables, PSPP_LDFLAGS and
426 PSPPIRE_LDFLAGS, that affect linking of the PSPP and PSPPIRE
427 binaries, respectively. This makes building easier for some
430 - Fixes for "configure --enable-relocatable" (bug #25508).
432 * Data file bug fixes and changes:
434 - Fix reading text data files that contain a mix of white space
435 and commas. Now "a ,b" is treated as two fields containing "a"
436 and "b"; previously it was treated as three, with an empty field
439 - Fix writing corrupted .sav files on Windows.
441 - Fix writing variable labels longer than 252 bytes to save files.
442 Thanks to Robert Westlund for reporting this bug.
444 - Fix writing corrupted .por files (bug #26034).
446 - Fix reading .por files whose initial lines are not padded out
447 with spaces as expected.
449 - PSPP will no longer issue warnings about some .sav file records
450 or values that it does not understand. These warnings were
451 harmless, but needlessly alarmed some users.
453 - Fix crash reading empty string fields from PostgreSQL databases.
455 * Bug fixes that affect PSPP and PSPPIRE:
457 - Users may now control precision of output statistics. Instead
458 of hard coding the width and decimals of output numbers, respect
459 the default format in most instances. Counts are now normally
460 displayed with the format of the weight variable, if any.
462 - Fix crash when an INSERT command specifies the name of a file
463 that does not exist (bug #24569).
465 - Fix crash when CROSSTABS specifies a long-string variable (bugs
468 - Fix crash drawing pie charts with many segments.
470 - Fix crash when NUMERIC specifies an invalid format.
472 * PSPPIRE bug fixes and changes:
474 - On Windows, write the output file to the user's home directory
475 instead of the current directory, to better match user
478 - Some data editor fixes.
482 - Fix typo in BINOMIAL section of user manual (bug #25892).
484 Changes from 0.6.0 to 0.6.1:
486 * Statistical bug fixes:
488 - Report correct standardized regression coefficients in linear
489 regression output (bug #23567).
491 * Bug fixes that affect PSPP and PSPPIRE:
493 - Avoid crash with pie charts (bug #24014).
495 - Don't append % to count totals (bug #24003).
497 - Don't crash on bad input (bug #24031).
499 - Don't crash if "end data." is not left aligned (bug #24115).
501 - Change default workspace value to 64 MB, to avoid unnecessary
502 disk accesses on modern machines.
506 - Add ".sav" or ".por" suffix to filename when saving with Save_As
509 - Make it possible to reopen the output window on Windows (bug
512 - A POSIX regular expression library is now included and used
513 automatically if the host does not have one or has one that is
516 * Build fixes and changes:
518 - Work around bug in GSL that prevented build with recent GCC
519 versions without manually adding -fgnu89-inline to CFLAGS.
521 - Also warn about missing prerequisites as we encounter them (bug
524 - Distribute necessary files to allow users working from the
525 distributed tarball to configure with --enable-gui-tools.
527 - Append $(EXEEXT_FOR_BUILD) to output file name when building
528 q2c, fixing build problems on Windows.
530 - GSL 1.8 or later is now required.
532 - Build errors with --enable-relocatable were fixed.
534 * The German translations were removed, since native German speakers
535 found them too poor to be useful.
537 Changes from 0.4.0 to 0.6.0:
539 * The PSPP license is now version 3 or later of the GNU General
540 Public License. Previously, it was version 2 or later.
542 * PSPP now has a graphical interface, called PSPPIRE. This
543 interface allows you to enter data and variable definitions
544 interactively. Commands may be executed in syntax form, or by
545 using the interactive dialog boxes available from the dropdown
548 * A few sample syntax files are now included in the `examples'
551 * Numerous major and minor bugs have been fixed.
555 * The INSTALL file now reflects the details of how to install
556 PSPP. It is a tailored version of the generic installation
557 instructions, instead of a verbatim copy.
559 * iconv, which is ordinarily installed as part of a Unix-like
560 system, is now required. If you don't have it already, you can
561 install GNU libiconv (http://www.gnu.org/software/libiconv/).
563 * libxml2 and zlib are new optional dependencies. They are
564 required to use PSPP's support for reading Gnumeric files.
566 Statistical procedure changes:
568 * REGRESSION is a new procedure for fitting linear models to data
569 via least-squares estimation.
571 * NPAR TESTS is a new procedure for non-parametric tests. In this
572 release, it supports binomial and chi-square tests.
574 * RANK is a new procedure to rank variables. It supports numerous
577 * FREQUENCIES can now output histograms and pie charts. These
578 features were present in earlier releases, but not documented.
580 User interface changes:
582 * In many situations where PSPP once terminated with a fatal
583 error, PSPP now recovers and continues execution.
585 * PSPP is now able to start up and run even if it cannot find its
588 * Journaling of interactive commands to a disk file is now
589 implemented. By default, journaling is enabled, to a file named
590 `pspp.jnl' in the current directory. SET JOURNAL may be used to
593 * The use of `+' between syntax file names on the command line to
594 prevent the dictionary from being cleared between their
595 executions is no longer supported. All syntax files are now
596 executed as if `+' had been specified.
598 * The -d/--define and -u/--undef command line options are no
599 longer supported. Instead, use /usr/bin/env or shell primitives
600 to define or clear environment variables before invoking PSPP.
602 * If a syntax file named named `rc' is found in a configuration
603 directory (such as $HOME/.pspp), it is executed before any
604 syntax file specified on the command line. The -r or
605 --no-statrc command line option may be used to disable this
610 * Output configuration options have changed. Please refer to the
611 manual for a full description of the available options.
613 In consequence, you will need to reinstall your "devices" file.
614 "make install" will do this for you.
616 * Most error messages are now written to PSPP output files by
617 default. SET ERROR can be used to disable this behavior.
619 * When invoked interactively, PSPP now by default produces output
620 on the terminal, piping it through the "more" program.
621 Previously, by default output was written only to file
622 pspp.list. On most terminals, the page length used for output
623 automatically adapts to the terminal size, even if the terminal
628 - This driver now supports charts in output. Charts are written
629 as separate files that the main output file refers to. By
630 default, charts are written in PNG format to files named
631 pspp-1.png, pspp-2.png, and so on.
633 - Configurations are provided that use VT100 (and xterm)
634 line-drawing characters in tables. The option "-o list-vt100"
635 requests use of this device for output to pspp.list.
639 - The default paper size is now determined using the PAPERSIZE
640 environment variable, or the LC_PAPER locale category on
641 systems that support it. If these are not set, the default is
642 now A4, instead of US letter. To make US letter the default,
643 set PAPERSIZE to "letter" in your environment.
645 - Font metrics are now read from AFM files, instead of
646 Groff-format metrics files. PostScript fonts can now be
649 In consequence, you will need to install an AFM file for each
650 font used in PostScript output. "make install" will install
651 AFM files for the standard PostScript fonts, including the
652 ones that the PostScript driver uses by default.
654 - Standard paper sizes no longer need to be specified through a
655 configuration file. The "papersize" configuration file is no
656 longer needed, or supported.
658 - The PostScript prologue is no longer obtained from the
659 "ps-prologue" configuration file. This configuration file is
660 no longer needed, or supported.
664 - The HTML prologue is no longer obtained from the
665 "html-prologue" configuration file. This configuration file
666 is no longer needed, or supported.
668 Command language changes:
670 * The following commands are new:
672 - GET DATA, which currently supports reading Gnumeric files and
673 text data files. It will be extended later to read other
674 types of foreign data.
676 - CD, to change the current directory.
678 - INSERT, to execute a syntax file.
680 - DELETE VARIABLES, to remove variables from the active file
683 - ADD DOCUMENT, to add text to active file documents.
685 - CLOSE FILE HANDLE (a PSPP extension; see below).
687 - XEXPORT, a PSPP extension that is a transformation equivalent
690 * The following functions for transformation expressions are new:
692 - DATEDIFF, for computing the difference of two dates.
694 - DATESUM, for advancing a date by a specified duration.
696 - VALUELABEL, to obtain the value label for a value.
698 * PSPP now supports very long string variables (over 255 bytes
701 * MATCH FILES now supports the FIRST and LAST subcommands.
703 * Previous versions of PSPP prohibited using commands to both read and
704 write a single file at the same time. Now, PSPP allows this, and
705 the new version of the file atomically replaces the old version.
707 * The following commands are no longer available. They will be
708 re-implemented in a later release:
710 - CLEAR TRANSFORMATIONS
716 * The PROCESS IF command, which was deprecated, has been removed.
717 You may replace any usage of it by SELECT IF following
718 TEMPORARY, which has the same effect.
720 * The output format for variables created by VECTOR may now be
721 specified as part of the VECTOR syntax.
723 "Scratch files", a new PSPP extension:
725 A scratch file, like a system file, consists of a dictionary and
726 any number of cases. Small scratch files are stored in memory;
727 one that grows too large is written to disk. By default, any file
728 handle whose name begins with # is assumed to refer to a scratch
731 Scratch files can be used just about anywhere a system or portable
732 file can be used. Also, portable files are now allowed in most
733 places that system files were allowed in previous PSPP version.
735 A new CLOSE FILE HANDLE command allows the storage associated with
736 scratch files to be freed. It also allows file handles to be
737 reassigned to new files.
739 For more information on scratch files, refer to the "File Handles"
740 section in the PSPP manual. For specifics of what commands now
741 allow what kinds of files to be specified, refer to the
742 documentation on those particular commands.
746 * Binary formats and IBM/360 formats, including ASCII/EBCDIC
747 translation, are now supported. Use FILE HANDLE to specify the
748 format of these files.
750 * Little-endian, big-endian, and VAX-endian formats are now
751 supported for integer binary formats when reading and writing
752 data files. The new RIB and WIB subcommands on the SET command
753 control endianness of integer data. The default is the host's
756 * IEEE 754, VAX, and IBM hexadecimal formats are now supported for
757 floating point binary formats when reading and writing data
758 files. The new RRB and WRB subcommands on the SET command
759 control the floating point format. The default is the host's
760 native floating point format.
762 * DATA LIST now supports the SKIP subcommand, to skip records at
763 the beginning of a file. For compatibility, DATA LIST now
764 treats N format as F format for FREE and LIST format input.
766 * The SAVE and XSAVE commands now support the UNSELECTED,
767 PERMISSIONS, NAMES, and MAP subcommands.
769 * The EXPORT command has been re-implemented to obtain better
770 results. Support for the UNSELECTED, DIGITS, and TYPE
771 subcommands has been added.
773 * For compatibility, PRINT now inserts a space at the beginning of
774 every output line, even lines that would otherwise be blank,
775 when OUTFILE is specified. (The behavior of WRITE is
778 * For compatibility, PRINT EJECT now inserts the digit `1' at the
779 beginning of each line that should begin a new page.
781 * For compatibility, WRITE now outputs the system-missing value as
782 a field filled with spaces. Binary formats are an exception.
783 (The behavior of PRINT is unchanged.)
787 * Input and output format descriptions have been rewritten. They
788 now precisely describe what is accepted on input and written on
791 * The descriptions of the PSPP system and portable file formats
792 have been extensively revised and improved.
794 For developers, the build system now requires Autoconf 2.60 and
797 Changes from 0.3.0 to 0.4.0:
799 Changes in build dependencies:
801 * The GNU Scientific Library (libgsl), version 1.6 or later, is
804 * libplot from GNU plotutils is optional. Without it, the new
805 graphing features will not work. If you do not have it
806 installed, you must run `configure' with --without-libplot.
808 * libgmp2 is no longer a dependency.
810 Newly implemented commands and statistical features:
812 * EXAMINE, including its graphing features.
814 * FREQUENCIES now supports percentiles.
822 * SORT CASES now sorts stably, that is, two cases with equal sort
823 criteria will be in the same relative order before and after the
826 * T-TEST (re-written).
828 * DATE and USE. These commands are parsed but otherwise ignored,
829 to enhance compatibility with certain command files that invoke
832 * VARIABLE WIDTH, VARIABLE ALIGNMENT, and VARIABLE LEVEL. These
833 currently have no effect on PSPP output, but their values are
834 written to and read from system files and thus may affect
835 third-party software.
837 * SET EPOCH implemented.
839 * DATA LIST FREE and DATA LIST LIST now support arbitrary field
842 * FILE HANDLE now supports custom tab widths.
844 Long variable names (and other identifiers) are now supported. Up
845 to the first 64 bytes of each identifier is significant. PSPP now
846 reads and writes system files compatible with SPSS version 12.
848 New --algorithm and --syntax command line options allow
849 SPSS-compatible or enhanced modes to be selected.
851 Support for transformation expressions has been rewritten and
852 significantly improved. Refer to the manual for details.
854 Calculation of moments (mean, standard deviation, kurtosis,
855 skewness) has been rewritten and should now be more accurate. In
856 --algorithm=enhanced mode moments may be more accurate than SPSS in
859 Numerous bugs have been fixed, too many to mention here. Many new
860 tests have been added, leading to the discovery and fixing of many
863 The ASCII output driver can now squeeze multiple blank lines into
866 Much of the code has been rewritten and refactored. It is now much
869 The FILE TYPE and REPEATING DATA commands have been disabled for
870 this release because their implementations were deemed too buggy to
871 be useful. They will be fixed and replaced in a future release.
873 New pspp-mode for Emacs (in pspp-mode.el).
875 Added rudimentary command-line completion for interactive input.
877 lib/julcal and lib/dcdflib are no longer used, so they have been
880 For developers, the build system now requires Autoconf 2.58 and
881 Automake 1.7. The included gettext has been updated to version
884 Some reports state that Texinfo 4.8, the latest version, may be
885 necessary to successfully format the documentation on some systems.
887 Version 0.3.0 changes since 0.2.3:
891 * Using alphanumeric variables in functions under AGGREGATE
894 * Under certain circumstances, the final case would be omitted
895 from the results of an AGGREGATE operation. Fixed.
897 * Undefined behavior was invoked by referencing a freed pointer
898 under certain circumstances. Fixed.
900 * A wrong record size was displayed when paging the active file to
903 * Not having enough temporary space for sorting caused a core
906 * Syntax errors in function descriptions on AGGREGATE caused core
909 * A null pointer was dereferenced, causing a core dump, when
910 PERCENTILES was specified on FREQUENCIES. This fixes the
911 problem, but PSPP still doesn't calculate percentiles.
913 * SORT always sorted in ascending order. Fixed.
915 * Some minor memory leaks in the expression parser were removed.
917 * Many assertions fixed for strict ANSI C compliance.
921 * SET ECHO ON now implemented, but turned off by default.
923 * PRINT specifier supported on END REPEAT.
927 * System libgmp2 library is used if installed instead of
928 unconditionally using the included libgmp2 subset.
930 * Extensive code cleanup, which continues.
932 * Added CORRELATIONS command parser, but not implemented.
934 Version 0.2.3 changes since 0.2.2:
938 * SPLIT FILE with a string variable caused a core dump. Fixed.
940 * Nested INCLUDEs didn't work. Fixed.
942 * The MATCH FILES procedure set the values of variables not present
943 to 0. It should have been SYSMIS. This is now fixed.
945 * The REMARK command was too aggressive about skipping lines. It
946 didn't like being the last command in a file.
948 * Comment parsing wasn't consistent with the rest of the code in its
949 idea of where one command ends and another starts. This meant
950 that sometimes commands would be mysteriously ignored. Thanks to
951 Dr. Dirk Melcher <BZN-mdksh@t-online.de> for reporting this bug.
953 * The TABLE subcommand on MATCH FILES worked only erratically at
954 best. This fixes it. Thanks to Dr. Dirk Melcher
955 <BZN-mdksh@t-online.de> for reporting this bug.
957 * VARIABLE LABELS rejected a slash before the first variable
958 specification, contradicting the documentation. Thanks to Walter
959 M. Gray <graywm@northernc.on.ca> for reporting this bug.
961 * Because of an incorrect optimization in memory allocation,
962 CROSSTABS sometimes segfaulted when asked to output multiple
963 tables. Thanks to Walter M. Gray <graywm@northernc.on.ca> for
966 * CROSSTABS didn't display value labels for column and row
967 variables. Thanks to Walter M. Gray <graywm@northernc.on.ca> for
970 * WRITE didn't write line ends. Fixed. Thanks to Dr. Dirk Melcher
971 <BZN-mdksh@t-online.de> for reporting this bug.
973 * The TABLE subcommand on MATCH FILES worked only erratically at
974 best. This fixes it. Thanks to Dr. Dirk Melcher
975 <BZN-mdksh@t-online.de> for reporting this bug.
977 * VARIABLE LABELS rejected a slash before the first variable
978 specification, contradicting the documentation. Thanks to Walter
979 M. Gray <graywm@northernc.on.ca> for reporting this bug.
981 * Because of an incorrect optimization in memory allocation,
982 CROSSTABS sometimes segfaulted when asked to output multiple
983 tables. Thanks to Walter M. Gray <graywm@northernc.on.ca> for
986 * CROSSTABS didn't display value labels for column and row
987 variables. Thanks to Walter M. Gray <graywm@northernc.on.ca> for
990 * WRITE didn't write line ends. Fixed. Thanks to Dr. Dirk Melcher
991 <BZN-mdksh@t-online.de> for reporting this bug.
993 * MATCH FILES corrupted memory and dumped core on some syntax
996 * MATCH FILES should set numeric values not available to the
997 system-missing value, not to 0. Thanks to Dr. Dirk Melcher
998 <BZN-mdksh@t-online.de> for reporting this bug.
1000 * KEEP didn't work properly on the SAVE procedure. Fixed. Thanks
1001 to Ralf Geschke <ralf@kuerbis.org> for reporting this bug.
1005 * Some systems didn't like the way open_file was coded. Thanks to
1006 Hankin <hankin@rogue.consultco.com> for pointing this out.
1008 * The SAVE procedure didn't save long string variables properly.
1009 Fixed by this patch. Thanks to Hankin
1010 <hankin@rogue.consultco.com> for this patch.
1012 * Minor documentation fixes for MATCH FILES.
1014 Version 0.2.2 changes since 0.2.1:
1018 * Fix behavior of PRINT SPACE for negative arguments.
1020 * Fix reading some unusual system files.
1022 * Fix LIST problems with very long variables. Thanks to Hankin
1023 <hankin@dunno.com> for this bug report.
1025 * Fix problems with some string format specifiers.
1027 * Fix use of $CASENUM in expressions. Thanks to Dirk Melcher
1028 <BZN-mdksh@t-online.de> for reporting this bug.
1030 * Additional DATA LIST FREE and DATA LIST LIST fixes. Thanks to
1031 Hankin <hankin@dunno.com> again on this one.
1033 * Sometimes you may encounter a PSPP script that has to be
1034 interpreted in interactive mode. Now you can use the -i flag to
1037 * Warnings for egcs 1.1.1 cleaned up. (However you'll get lots of
1038 `unused variable' warnings under gcc 2.7.2.3, fixing this will
1043 * The files in gmp need the internationalization directory in
1044 their include path. Thanks to OKUJI Yoshinori
1045 <okuji@kuicr.kyoto-u.ac.jp> for pointing this out.
1047 Version 0.2.1 changes since 0.2.0:
1051 * Remember to include examples/ directory in distribution :-)
1053 * Fixed gmp compile problems for some non-i386 architectures.
1054 Thanks to Hans Olav Eggestad <olav@jordforsk.nlh.no> and others
1057 * DATA LIST FREE and DATA LIST LIST parsing of input files is now
1058 matches the documented behavior exactly, and error messages are
1059 more helpful. Thanks to Mark H. Wood <mwood@IUPUI.Edu>.
1061 Version 0.2.0 changes since 0.1.0:
1063 Procedures now implemented:
1064 * CROSSTABS. Please see documentation for caveats.
1066 Transformations and utilities now implemented:
1069 * CLEAR TRANSFORMATIONS
1070 * DISPLAY (all subcommands).
1081 Support for input and output through pipes: "|command" and
1082 "command|" filenames; support for special filenames "-", "stdin",
1085 New command-line features:
1086 * New option --testing-mode: Invoke heuristics to assist testing.
1087 * New option --safer, -s: Don't allow certain unsafe operations.
1088 * New option --command=CMD, -c CMD: Perform literal command CMD.
1089 * rc file ~/.pspp/rc is executed before any other files.
1090 * Now multiple syntax files can be specified.
1092 Operator LAG is now implemented.
1094 Added missing FILE subcommand to REREAD.
1096 Table output manager completely rewritten.
1098 Device configuration file syntax changed. You will need to
1099 reinstall your `devices' file.
1101 New output driver for HTML.
1103 PostScript driver and prologue simplified.
1105 Many bugs fixed. General source-code cleanup.
1107 Added Texinfo documentation for:
1108 * PSPP system file format
1109 * PSPP portable file format
1110 * How to write input for q2c parser generator
1113 PSPP language is now fully documented. Please report any
1114 inaccuracies or omissions in the documentation.
1116 Changes for version 0.1.0:
1118 First public release. For changes from unreleased development
1119 versions, please see ONEWS.
1121 ----------------------------------------------------------------------
1122 Copyright information:
1124 Permission is granted to anyone to make or distribute verbatim
1125 copies of this document as received, in any medium, provided that
1126 the copyright notice and this permission notice are preserved, thus
1127 giving the recipient permission to redistribute in turn.
1129 Permission is granted to distribute modified versions of this
1130 document, or of portions of it, under the above conditions,
1131 provided also that they carry prominent notices stating who last
1135 version-control: never