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Voyant Tools

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Welcome to the Documentation site for Voyant Tools, a web-based text analysis and reading environment. Here you will find some help for getting started, more complete documentation for tools (including a collection of screencasts), useful resources (examples & workshops), and general information about Voyant Tools.


The R Project for Statistical Computing

R is an open source programing language designed for statistical analysis and parallel computing. R began its life as a research project at the University of Aukland, but has since expanded to become a collaborativly run open source project run by the GNU. R has libraries for data import, regular expression data splitting, and visualization of data. R can be run as either a script or as a working environment.

R Graphics Demo



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Quantitative Programs (list compiled by Paul Skalski)grams (list compiled by Paul Skalski)

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is software for qualitative researchers who want to analyze video, auditory, and still image data.

"Introduction To Transana" ScreenCast

Transana lets you analyze and manage your data in very sophisticated ways. It provides tools that allow you to: Transcribe video and audio files (in a wide variety of ways useful for different analytic purposes); Identify analytically interesting portions of audio and video files, creating analytic units called Clips; Code Clips by assigning Keywords; Explore relationships in your coded analytic data through text reports, graphical reports, and the search tool; Manage large collections of video, audio, and still image files, as well as coded analytic clips and images.




High Performance Text Analysis for Professional Users

Analysis of written or spoken texts requires that certain questions should be asked with regard to certain objectives.

Click here for more information about Tropes Text Analysis

Extraction of Relevant Information

Tropes can immediately detect contexts, isolate themes and identify principal actors, through the application of three levels of semantic classifications. You can quickly determine who says what to whom; who does what, where and when; and with what purpose.

Qualitative Analysis and Categorization

Tropes identifies the Text Style in order to place it in context and rapidly compare it with other texts. Tropes uses Semantic Meta-Categories to group verbs, adjectives, adverbs, personal pronouns and conjunctions.

And more…


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The Yoshikoder is a cross-platform multilingual content analysis program developed as part of the Identity Project at Harvard‘s Weatherhead Center for International Affairs.

You can load documents, construct and apply content analysis dictionaries, examine keywords-in-context, and perform basic content analyses, in any language. Here’s a screenshot.

The Yoshikoder works with text documents, whether in plain ASCII, Unicode (e.g. UTF-8), or national encodings (e.g. Big5 Chinese.) You can construct, view, and save keywords-in-context. You can write content analysis dictionaries. Yoshikoder provides summaries of documents, either as word frequency tables or according to a content analysis dictionary. You can also apply a dictionary analysis to the results of a concordance, which provides a flexible way to study local word contexts. Yoshikoder’s native file format is XML, so dictionaries and keyword-in-context files are non-proprietary and human readable.


This is the most powerful and flexible concordance program, with registered users in 70 countries.


Main screen

With Concordance, you can …
  • analyse electronic text
  • make word lists, indexes, and full concordances
  • count word frequencies
  • list all usages of a word and see each within its context
  • find keywords, phrases and idioms
  • gain insights into meaning
  • discover a writer’s stylistic traits
  • publish results to the web – see The Web Concordances
  • …and much more besides.
  Concordance is being used in …
  • Language teaching and learning
  • Data mining and data clean-up
  • Literary and linguistic scholarship
  • Translation and language engineering
  • Corpus linguistics
  • Forensics
  • Natural language software development
  • Lexicography
  • Content analysis in accountancy, medicine, history, marketing, musicology, politics, geography, media studies and many other fields.