Cyril Burt (1950) gave these data, on a sample of 100 people from Liverpool, to illustrate the application of a method of factor analysis (later called multiple correspondence analysis) applied to categorical data.
This data set, from Efron and Thisted (1976), gives the number of distinct words types (Freq) of words that appeared exactly once, twice, etc. up to 100 times (count) in the complete works of Shakespeare. In these works, Shakespeare used 31,534 distinct words (types), comprising 884,647 words in total.
The ICU data set consists of a sample of 200 subjects who were part of a much larger study on survival of patients following admission to an adult intensive care unit (ICU), derived from Hosmer, Lemeshow and Sturdivant (2013) and Friendly (2000).
Yamaguchi (1987) presented this three-way frequency table, cross-classifying occupational categories of sons and fathers in the United States, United Kingdom and Japan. This data set has become a classic for models comparing two-way mobility tables across layers corresponding to countries, groups or time (e.g., Goodman and Hout, 1998; Xie, 1992).
Bartlett
(Package: vcdExtra) :
Bartlett data on plum root cuttings
In an experiment to investigate the effect of cutting length (two levels) and planting time (two levels) on the survival of plum root cuttings, 240 cuttings were planted for each of the 2 x 2 combinations of these factors, and their survival was later recorded.
Data on all fatal commercial airplane crashes from 1993–2015. Excludes small planes (less than 6 passengers) and non-commercial (cargo, military, private) aircraft.
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