From: Site-specific time heterogeneity of the substitution process and its impact on phylogenetic inference
substitution number
-ln(PIPn)
[0,12[
[12,22[
[22,33[
[33,105[
PIPn = 0
[0,9[
150
160
115
41
4
[9,26[
107
95
100
43
[26,56[
60
73
83
113
132
[56,210[
24
37
21
77
301