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add default to poisson -> max_delta_step to enable loading/saving/dumping of model (#1781)

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Tony DiFranco 2016-11-16 17:25:00 -05:00 committed by Tianqi Chen
parent 58aa1129ea
commit f11f2bd5fd
1 changed files with 1 additions and 1 deletions
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src/objective/regression_obj.cc
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@ -150,7 +150,7 @@ XGBOOST_REGISTER_OBJECTIVE(LogisticRaw, "binary:logitraw")
struct PoissonRegressionParam : public dmlc::Parameter<PoissonRegressionParam> {
float max_delta_step;
DMLC_DECLARE_PARAMETER(PoissonRegressionParam) {
DMLC_DECLARE_FIELD(max_delta_step).set_lower_bound(0.0f)
DMLC_DECLARE_FIELD(max_delta_step).set_lower_bound(0.0f).set_default(0.7f)
.describe("Maximum delta step we allow each weight estimation to be." \
" This parameter is required for possion regression.");
}