Table 3. Inactive drug-target interactions.

The rows correspond to drugs and the columns to targets. The far right hand column gives values for the row sums (‘Row-Sum’), while the bottom most row gives values for the corresponding column sums (‘Col-Sum’). The binary values at the center of the table show whether a given drug-target pair is inactive (1) or active (0) or of unknown activity (0).

	t 1	t 2	t 3	t 4	Row-Sum
d1	0	0	0	0	0
d2	0	0	0	1	1
d3	0	0	0	1	1
d4	0	0	0	1	1
d5	1	0	0	0	1
d6	0	1	1	0	2
d7	0	0	0	0	0
d8	0	1	0	0	1
Col-Sum	1	2	1	3	7