Fraction of close-in super-Earths as a function of stellar mass with sampled initial accretion rates and disc sizes. The black lines show the median values out of all runs, while the error bars show the 16th and 84th percentiles. Similarly to Fig. 4, the super-Earth fraction increases with increasing stellar mass in the irradiated case (left). When the disc is viscously heated (right), the super-Earth fraction flattens out for host stars more massive than 0.5 M_⊙.