Figure 3. Success rate 
of a robot controlled by a neural network to move an object.
For example, 
indicates 
success of moving the object without dropping it. The graph depicts the frequencies of networks occurring in certain ranges of the success rate. We recorded the behaviors of the robot for up to 
trials of moving the object for 
sample networks. The average success rates for the higher-level time constant 
of 
, 
, and 
were 
, 
, and 
, respectively.