Fig. 5
From: Evolution within a language: environmental differences contribute to divergence of dialect groups
Spatial autocorrelation plots for features remaining in the final model of municipal dialect analysis. Autocorrelation coefficient (r; blue line) as a function of geographical distance for (a) linguistic differences, (b) difference in administrative history, difference in (c) percentage of forest land, (d) percentage of chimneyless huts, (e) slash-and-burn agriculture per 100 ha cultivated land, (f) percentage of clay, (g) percentage of bedrock and (h) percentage of lakes. The 95% confidence intervals calculated with permutation (red lines), and bootstrapped 95% confidence intervals (error bars) are also shown