Clump mass functions for the three cases (using staking from 5 consecutive snapshots, to improve the statistics). The dashed lines indicate the best-fit of the high-mass end using a power-law. This gives indexes of −2.0, −1.5 and −1.6 for the ℱ10, ℱ25, and ℱ40 cases respectively. The dotted curves are fits to the data of f_gas = 40% using a Schechter function (see text). This functional form does not provide a good match to the other cases.