Weights from aggregator model in Elevation which uses Gradient Boosted regression
trees. The features were: the mean; median, variance (var), standard deviation
(std), 99th, 95th, 90th percentiles, and sum of
the Elevation gRNA-target scores for each gRNA. We compute these for each of:
all off-targets (no postfix), only genic off-targets (“genic”),
and only non-genic targets (“non-genic”), where is-genic is
obtained from ENSEMBL.37
Additionally, we compute these further features: fraction of targets that are
genic; fraction that are non-genic; ratio of number of genic to non-genic
targets; ratio of mean genic to non-genic score. The Gini importance is
described in Methods.