The search field
Currently, Bookworm supports one-word (unigram) or two-word (bigram) entries as search terms, entered via the search field.
The facet fields display the options for faceted search. Initially, clicking "All texts" will pop up a menu that displays the possible facet fields. After a selection is made, you can modify it again by clicking on that label. Initially, by clicking "All" or inside this box, another popup displays a scrolling list of values that can be selected for the given facet. Multiple values for a given facet field can be chosen by clicking inside this box. So, for instance, you can search for "Publication Country:US OR Canada". In addition, you can select values for multiple facet fields. See the figure below, in which three facet fields have been specified.
Clicking on the “information” button, shown by an “i” icon at the top right corner of the window, will display information about the project, about the HathiTrust Research Center and about the Rice Cultural Observatory.
Clicking on the "settings" button, shown by the "gear" icon which is next to the "i" icon, will pop up a menu for changing display options to specify "Time", "Metric", "Case" and "Smoothing".
Time range can be adjusted by dragging the "Time" slider for begin point and end point to the left and right as necessary.
* The "Quantity" selection allows you to choose how the numerical values are counted:
* "% of words" shows how frequently the unigram or bigram is used relative to all other tokens in the corpus, for the given year shown. This lets you see how often a word is used relative to the size of the corpus, without having to worry about things like whether there are more books in 1850 than 1900.
* The "% of texts" gives the number of texts that use your search terms at least once as a proportion of the total number of texts published that year. Unlike "% of words," it will not be skewed by a single book that uses a word hundreds of times; however, it may be impacted by changing sizes.
* When "word count" is selected, the actual count of the searched word is used for creating the plot.
* When "text count" is selected, only those volumes in which the searched word occurs, are used for creating the plot. So, each such text registers as only a single count.