Syntactic features are less often used; cf., e.g., (Cheng et al., 2009).
from linguistics and philology we know that syntactic idiosyncrasies are also distinctive features of the writing style of individuals and groups of individuals who share demographic, social, cultural or gender characteristics; see, e.g., (Crystal and Davy, 1969;Biber, 1989;Strunk and White, 1999;Tufte, 2006).