stylo (version 0.7.5)

rolling.delta: Sequential stylometric analysis

Description

Function that analyses collaborative works and tries to determine the authorship of their fragments.

Usage

rolling.delta(gui = TRUE, path = NULL, primary.corpus.dir = "primary_set",
              secondary.corpus.dir = "secondary_set")

Value

The function returns an object of the class stylo.results, and produces a final plot.

Arguments

gui

an optional argument; if switched on, a simple yet effective graphical user interface (GUI) will appear. Default value is TRUE.

path

if not specified, the current working directory will be used for input/output procedures (reading files, outputting the results).

primary.corpus.dir

the subdirectory (within the current working directory) that contains a collection of texts written by the authorial candidates, likely to have been involved in the collaborative work analyzed. If not specified, the default subdirectory primary_set will be used.

secondary.corpus.dir

the subdirectory (within the current working directory) that contains the collaborative work to be analyzed. If not specified, the default subdirectory secondary_set will be used.

Author

Mike Kestemont, Maciej Eder, Jan Rybicki

Details

The procedure provided by this function analyses collaborative works and tries to determine the authorship of their fragments. The first step involves a "windowing" procedure (Dalen-Oskam and Zundert, 2007) in which each reference text is segmented into consecutive, equal-sized samples or windows. After "rolling" through the test text, we can plot the resulting series of Delta scores for each reference text in a graph.

References

Eder, M., Rybicki, J. and Kestemont, M. (2016). Stylometry with R: a package for computational text analysis. "R Journal", 8(1): 107-21.

van Dalen-Oskam, K. and van Zundert, J. (2007). Delta for Middle Dutch: author and copyist distinction in Walewein. "Literary and Linguistic Computing", 22(3): 345-62.

Hoover, D. (2011). The Tutor's Story: a case study of mixed authorship. In: "Digital Humanities 2011: Conference Abstracts". Stanford University, Stanford, CA, pp. 149-51.

Rybicki, J., Kestemont, M. and Hoover D. (2014). Collaborative authorship: Conrad, Ford and rolling delta. "Literary and Linguistic Computing", 29(3): 422-31.

Eder, M. (2015). Rolling stylometry. "Digital Scholarship in the Humanities", 31(3): 457-69.

See Also

rolling.classify, stylo

Examples

if (FALSE) {
# standard usage:
rolling.delta()

# batch mode, custom name of corpus directories:
rolling.delta(gui = FALSE, primary.corpus.dir = "MySamples",
       secondary.corpus.dir = "ReferenceCorpus")
}