Convergence per method for a subset of 4 microarray experiments. The solid line corresponds to the mean hill climbing fitness reached at each iteration, the dashed line to the simulated annealing and the dotted line to the genetic algorithm. Experiments were chosen to roughly cover the range of fitness values reached in all microarray experiments. Experiments GSM539 and GSM516 where the ones with the least and most possible allocation positions and thus the ones producing the smallest and largest fitness values in the dataset respectively. Fitness values for experiments GSM518 and GSM526 are equally distanced from the two extremes.