(a) The H ii LFs for the original (dashed line) and group (solid line) samples. (b) The H ii LFs for the group sample (solid line), the grouped H ii regions (dotted line) and in Thilker et al. (2000, dashed line). (c) The H ii LFs for the group sample (solid line), the grouped H ii regions (dotted line) and in Gutierrez et al. (2011, dashed line). Thick lines represent power law fits. Arrows mark the break point.