Fig. 2

Averaging survival curves. When the observation is covered by multiple rules (r 1 and r 2 in this case), its survival function (solid line) is obtained as an average of the rule functions (dashed lines)
Averaging survival curves. When the observation is covered by multiple rules (r 1 and r 2 in this case), its survival function (solid line) is obtained as an average of the rule functions (dashed lines)