Skip to main content
. Author manuscript; available in PMC: 2015 Dec 3.
Published in final edited form as: J Comput Biol. 2010 Mar;17(3):443–457. doi: 10.1089/cmb.2009.0165

FIG. 3.

FIG. 3

P-values predicted by our four approximation schemes (normal, red; Y-convolution, blue; triangle convolution with rounding, yellow; triangle convolution with interpolation, green) for the TPD clustering measure. Each data point records the approximated p-value (y-axis) for the TPD score that obtained the given empirical p-value (0.001, 0.01, 0.1), on a random scale-free graph with 1000 vertices and the given number of edges (x-axis). The triangle convolution with rounding method was too slow to be evaluated for k > 20, and that with interpolation could only be run for k = 5 and k = 10.