Table 4 

Right external equality 

X_{ik} 

1 
2 
3 
4 
5 
6 
7 
8 
9 
10 
11 
12 
13 
14 
15 
16 



1 
1 
0 
0 
0 

2 
0 
1 
0 
0 

3 
0 
0 
1 
0 

4 
0 
0 
0 
1 

5 
1 
0 
0 
0 

6 
0 
1 
0 
0 

7 
0 
0 
1 
0 

X_{ij} 
8 
0 
0 
0 
1 

9 
1 
0 
0 
0 

10 
0 
1 
0 
0 

11 
0 
0 
1 
0 

12 
0 
0 
0 
1 

13 
1 
0 
0 
0 

14 
0 
1 
0 
0 

15 
0 
0 
1 
0 

16 
0 
0 
0 
1 



The table enumerates the truth values for the binary feature function right external equality (f_{5}). Only the possible entries are annotated with zero and one. The other entries require different values of Z_{i }in X_{ij }and X_{ik}, which is not possible. Note, that the feature function can assume the value one only when X_{ij }and X_{ik }are equal, which is in accordance with the definition of right external equality. 

Bandyopadhyay et al. BMC Genomics 2012 13(Suppl 2):S2 doi:10.1186/1471216413S2S2 