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Percentage frequency of feature pairs occurrence as compared with all not qualified trees (not meeting the optimality requirements)
| Pairs | Percentage frequency |
|---|---|
| w(6) andw(9) |
81% |
|
w(5) and w(9) |
81% |
|
w(7) and w(9) |
81% |
|
w(3) and w(9) |
80% |
|
w(4) and w(9) |
79% |
|
w(5) and w(7) |
79% |
|
w(2) and w(9) |
78% |
|
w(6) and w(7) |
77% |
|
w(1) and w(9) |
77% |
|
w(3) and w(5) |
77% |
| w(5) and w(6) | 77% |
