A first signal and a second signal associated with a circuit may be identified. A first count of a number of times that the second signal is associated with a transition when the first signal is at a first value may be determined. Furthermore, a second count of a number of times that the second signal is associated with a transition when the first signal is at a second value may be determined. A value corresponding to the dependence between the second signal and the first signal may be calculated based on the first count and the second count.