The results of the Generalized Linear Model including only silcrete flakes (n = 170).

(1) not shown because of not having any meaningful interpretation
(2) all covariates were z-transformed to a mean = 0 and sd = 1, original means (sd) were: curvature: 173.69(10.99); epa: 65.23(15.35); thickness evenness: 2.42 (2.07); platform depth: 8.44(5.57)
(3) square root transformed prior to z-transformation
(4) standardized by the geometric mean
The results of the Generalized Linear Model including only silcrete flakes (n = 170).