Github user orhankislal commented on a diff in the pull request:
https://github.com/apache/incubator-madlib/pull/120#discussion_r112341893
--- Diff: src/modules/recursive_partitioning/decision_tree.cpp ---
@@ -235,7 +259,14 @@ dt_apply::run(AnyType & args){
else{
return_code = TERMINATED; // indicates termination due to error
}
+ uint32_t n_valid_nodes = 0;
+ for (Index i=0; i < dt.feature_indices.size(); i++){
+ if (dt.feature_indices(i) != dt.NODE_NON_EXISTING)
+ n_valid_nodes ++;
+ }
+ elog(INFO, "Depth = %d, n_valid_nodes = %d",
--- End diff --
This info and its context (the sql function that calls madlib._dt_apply) is
printed to the console if the user is calling the DT from a plain psql client.
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