Github user fmcquillan99 commented on the issue: https://github.com/apache/madlib/pull/295 Another run I got ``` grp 0 grp1 31.01364943 31.66666576 22.85881741 33.33333245 13.70257438 0 6.344527751 3.333333304 26.0804244 11.66666654 total 99.99999336 79.99999806 ``` so this does seem to be about trees contributing or not.
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