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nGrams depict the frequency of a word or word phrase and are most often depicted over publication year.  We have two nGram tools, each leveraging different source data.

Google's nGram Viewer. The links below as starting points.  Dynamic modifications can be made at any point. Rules for syntax can be found on the About page.

• Data: Primary source data was selected volumes from Google Books (methodology is described here). 
• Analysis: Tool is integrated with secondary data (tokens, counts, frequencies, publication dates) derived from primary source. 
• Visualization: Simple line graph plots of ngram frequency over publication date.  
• Examples
  
  • Urban renewal
  • Names of New York City
  • Spanish words in English publications
  • Frequency for which Roland Barthes has been cited in various languages
  • Terms related to racial integration
  • "Ebola" 1975-2008 in various languages (compare with data from WHO on Ebola outbreaks and a map of official languages of African countries)

HathiTrust Research Center (HTRC) Bookworm

• Data: Primary source data is the openly viewable texts from the HathiTrust Research Center (publications mostly pre-1923).
• Analysis: Tool is integrated with secondary data (tokens, counts, frequencies, publication dates) derived from primary source by the HTRC. 
• Visualization: Simple line graph plots of ngram frequency over publication date. Tool has faceting control as well.
• Examples
  • Spanish Words in English publications

Network Analysis

Data:

Analysis:

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