Calculating Summary
Since v. 2.0, Textanz contains "Summary" tab. Calculation in this tab returns some summary statistical values from the source text. Like in other tabs, text should be loaded into the right pane and then "Calculate" button should be pressed.
Summary
Calculation process is not interruptible , but not as lengthy as frequency counting. Almost all parameters are intuitively understandable, except of following:
Lexical density test is one of readability tests designed to show how easy or difficult a text is to read. It uses the following formula:
- Lexical Density = Number of distinct words / Total number of words
- Texts with a lower density are more easily understood.
Yet another readability test is so called automated readability, shown in the very bottom of Summary tab. The calculation formula for automated readability is :
- Divide the number of characters by the number of words, and multiply by 4.71. This is #1.
- Divide the number of words by the number of sentences, and multiply by 0.5. This is #2.
- Add #1 and #2 together, and subtract 21.43.
Automated readability = (4.71 * characters/word) + (0.5 * words/sentence) - 21.43
Linguistics specialists may ask why we don't include other known readability tests : Gunning-Fog, SMOG, etc. Our goal is to keep Textanz language-independent, while most of these indexes relies on language features (e.g. syllables). This program is designed to perform quick and generic analysis of texts in everyday work. We consider provided functionality sufficient for this purpose.
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