What are the column definitions for H2O's gain

Question

H2O's documentation doesn't provide clear definitions for each column in the gains/lift table output. I'm not sure how the capture rate is being calculated, and there is a score column that is not mentioned in the documentation.

Here's what the output looks like.

The raw java file is here -- I tried finding the answer to my question in there but had difficulty making sense of it. Thanks.

Answer 1

The capture rate is the proportion of all the events that fall into the group/bin. E.g. if 90 out of total 100 positive outcomes/events fall into the first bin, then the capture rate for that bin is 0.9.