Present-day MFs of all stars ≥ 2 M_⊙ for clusters with M_ecl = 10³, 10^3.5, and 10⁴ M_⊙ at 3 Myr. Grey horizontal bars and numbers below the points are the average values for each N-body model with different cluster mass. The uncertainties on the average ⟨ α_in ⟩ values are standard deviations of the mean. The red star is the model with M_ecl = 3000 M_⊙ and with initial conditions similar to the MS3UQ_SP model, but stellar masses derived by optimal sampling (see text). For this model, cluster masses are shifted to higher masses by 0.25 on the logarithmic scale to separate the model from the MS3UQ_SP model. The triangles are clusters with an age of ≈ 4 Myr in M 31 from Weisz et al. (2015).