Upper panel: WDLF for the 100 pc sample. The bin width is 0.25 M_bol and theconfidence intervals are Poisson uncertainties (Gehrels 1986). The structure and features in the WDLF are statistically significant for all but the first and last few bins. Lower panel: V∕V_Max statistic for the WDLF sample plotted in the upper panel. The expectation value for the statistic is 0.5 for a uniform sample within the survey volume (see the main text for further details).