WordStat 5.1 Computer Assisted Text Analysis

What's New in Version 5.1?

For a more detailed description of all these new features, download the WordStat 5.1 Addendum.

DICTIONARIES PAGE

• New pre-processing module for 4-gram and 5-gram transformations.
• Ability to search the dictionary for specific strings.
• A Show Warning option allows one to obtain a warning dialog box showing compatibility problems of dictionaries (illegal characters, words in both the categorization and exclusion list, phrases starting with an excluded word, etc.).
• Improved dialog box for entering and editing words, phrases and categories (multiple-line edit box).

  

FREQUENCIES PAGE

• Bar charts and pie charts can now be used to display the frequency distribution of items.
• Ability to copy the frequency table or part of it to the clipboard.
• Search dialog box to quickly find items in large frequency tables.
• Ability to include a column (or variable) containing the total number of words in the document when exporting data.

CROSSTAB PAGE

• Ability to copy a crosstab table or part of it to the clipboard.
• Search dialog box to quickly find items in large frequency tables.
• Computation speed of Pearson's r and Spearman's rho have been greaty impoved (typically from 10 to 100 times faster).

KEYWORD-IN-CONTEXT PAGE

• The KWIC list now supports the display of rules.

FEATURE EXTRACTION PAGE

• Ability to compare frequency or case occurrence between classes of categorical variables.
• Identification of overlaps between extracted phrases.
• Ability to filter table to display phrases containing specific strings or those characteristic of a class of categorical variable.
• The TFxIDF statistic has been added to the table of extracted phrases.
• Ability to select phrases meeting a minimum number of cases criterion.
• Speed optimization of phrase extraction routine (about 2x faster).
• Memory optimization allows phrase extraction to be applied on larger document collections.

CORRESPONDENCE ANALYSIS

• Random noises may be added to point locations in correspondence plots in order to differentiate items plotted on top of each other.

AUTOMATIC DOCUMENT CATEGORIZATION

• The feature selection in classification can now be performed on frequencies and percentages (not just case occurrences).
• It is now possible to classify documents stored in another Simstat or QDA Miner data file.

OTHERS

• The document conversion wizard may now be used to classify documents stored in another Simstat or QDA Miner data file.

Click here to see changes introduced in version 5.0

Click here to see changes introduced in version 4.0