Fig. 4.
(A) Average similarity between authors as function of the temporal distance between them, for four groups: authors who wrote between 1784–1829, 1825–1870, 1866–1911, 1907–1952, using Savg(t). Note that similarity changes differently as a function of temporal distance, depending on which era is considered. This suggests different “regimes” of stylistic influence. (B) Average similarity between authors as function of the temporal distance between them for the same four groups as in A, except that these curves depict the windowed analysis SW(t). Note the vastly different trends in influence between the two earlier and two later subdivisions. The flat dashed line in each interval marks the overall average in each time period.