newsPSPP - News: PSPP 0.10.0 has been released

 
 
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PSPP 0.10.0 has been released

Item posted by Ben Pfaff <blp> on Sat 26 Mar 2016 05:41:51 PM UTC.

I'm very pleased to announce the release of a new version of GNU PSPP.  PSPP is a program for statistical analysis of sampled data.  It is a free replacement for the proprietary program SPSS.

Changes from 0.8.5 to 0.10.0:

  • The QUICK CLUSTER command has a /PRINT subcommand which shows the initial cluster centres and the final cluster membership of each case.  The clustering algorithm has also been updated, so as to produce better separated clusters.
  • A Russian localisation has been contributed.
  • The GRAPH command now has a /BAR subcommand to draw barcharts.
  • If the DECIMAL character is set to COMMA then the ',' character will not be treated as a separator by DATA LIST.
  • The graphical user interface (psppire) has been changed as follows:
    • It now uses Gtk+ version 3 instead of version 2.  Accordingly, it has a somewhat different look and feel.
    • There is now a Graphs menu to access the GRAPH command.
    • The status of dialog box widgets are now preserved between calls to the same dialog box for the same dataset.
    • The dialog box for the Logistic Regression command will now infer that string variables or any varible with a "measure" of Nominal or Ordinal are to be treated as categorical variables and will generate syntax accordingly.
  • The pspp-convert utility can now decrypt encrypted syntax files.  The encrypted syntax file format is unacceptably insecure, so to discourage its use PSPP and PSPPIRE do not directly read or write this format.
  • New commands:
    • SORT VARIABLES.
  • The following functions for transformation expressions are new:
    • REPLACE, for search-and-replace of one string with another.
    • STRUNC, to truncate a string and trim trailing spaces.
    • MEDIAN, to compute the median of its arguments.
    • The TRUNC function in expressions now supports additional arguments for truncating to values other than integers and to indicate a level of rounding fuzz.  The default rounding fuzz may now be controlled and displayed with SET FUZZBITS and SHOW FUZZBITS, respectively.
  • Bug fixes, including the following notable ones:
    • The correlation coefficient in the paired samples t-test procedure is now correctly calculated when presented with weighted data.
    • The ESCAPE subcommand has been removed from GET DATA /TYPE=TXT.  For compatibility, the behavior that ESCAPE enabled is now the default and only supported behavior.
    • Rendering of the variable and data sheets in right-to-left locales now works properly.
    • The Mann-Whitney test, when run on a dataset containing values of the group variable, other than those defining the test groups, would incorrectly calculate the ranks.  This has been corrected.
  • The IMPORTCASES subcommand on GET DATA is now ignored, for compatibility.

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