[Right now, this is a blob rather than a full post. To be completed soon!]
A background story
Check this post by Maciej Eder and Jan Rybicki.
Data miners dig into Lee
A post by Ellen Gamerman published in The Wall Street Journal on July 16, 2015, entitled Data Miners Dig Into ‘Go Set a Watchman’: Two scholars who analyzed Harper Lee’s prose for The Wall Street Journal found the Pulitzer winner’s writing style more consistent in ‘Go Set a Watchman’ than ‘To Kill a Mockingbird’.
Choiński, M., Eder, M. and Rybicki, J. (2019). Harper Lee and other people: a stylometric diagnosis. Mississippi Quarterly, 70/71(3): 355–374.
Eder, M. and Rybicki, J. (2016). Go set a watchman while we kill the mockingbird in cold blood, with cats and other people. Digital Humanities 2016: Conference Abstracts. Kraków: Jagiellonian University & Pedagogical University, pp. 184–86, http://dh2016.adho.org/abstracts/70.