Figure 4
Probability of cooperation in different contexts in randomized data of Plön experiment.
On the x-axis is the fraction of cooperating neighbors in the previous round and on the y-axis is the probability that the player will cooperate in the next round. We present separately the probabilities of cooperation after the focal player played C and D in the previous round. All error bars are the standard deviations of a binomial distribution, 
, where n is the number of samples and p is the probability of cooperating. Left: whole experiment. Right: without the first 2 rounds. Top: experimental results. Bottom: randomized data.
