Table 2 Counts for the i th 2 × 2 contingency table
From: The impact of RNA structure on coding sequence evolution in both bacteria and eukaryotes
| Â | Conserved sites | Non-conserved sites | Total |
|---|---|---|---|
Structurally sensitive | a i | b i | m 1i |
Structurally non-sensitive | c i | d i | m 2i |
Total | n 1i | n 2i | s i |