Release Notes

DataPreparator v1.7  Release Date: 12 July 2014

  • Various amendments and bug fixes.

DataPreparator v1.6  Release Date: 6 March 2013

  • Changed the visualization module.
  • Added several other visualization techniques.
  • Made various amendments.

DataPreparator v1.5  Release Date: 18 July 2012

  • Added the following features:
    1. Parallel Coordinates visualization technique, located in the Visualize node, Parallel Coordinates button.
    2. A Bayesian method for imputation of missing values in categorical variables. This is located in the Missing Values node, Impute tab.
    3. Data smoothing operator in the File Utils node, Columns tab.
    4. More statistics in the Statistics node.

DataPreparator v1.4  Release Date: 25 July 2011

  • Made some corrections and added manual discretization option to the Discretize node.

DataPreparator v1.3  Release Date: 15 June 2011

  • Made various corrections and minor changes.

DataPreparator v1.2  Release Date: 19 Oct 2010

  • Added Metaphone phonetic algorithm.  Both Soundex and Metaphone are accessed from the "Encode" tab in "File Utils" node and from the "Encode Data" submenu of the "Tools" menu on the menu bar.
  • Restructured the tabs in the "File Utils" node and added several other utilities (Add Cols, Join, Split Cols, Split Rows).
  • Added "Split File" tool to "Tools" menu. 
  • Made a few other minor changes and fixed some bugs.

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