shrinkage         903 modules/ml/src/gbt.cpp     Tree_predictor() : weak(0), sum(0), k(0), sample(0), missing(0), shrinkage(1.0f) {}
shrinkage         907 modules/ml/src/gbt.cpp                    missing(_missing), shrinkage(_shrinkage)
shrinkage         912 modules/ml/src/gbt.cpp             missing(p.missing), shrinkage(p.shrinkage)