H2O is an Open Source, Distributed, Fast & Scalable Machine Learning Platform: Deep Learning, Gradient Boosting (GBM) & XGBoost, Random Forest, Generalized Linear Modeling (GLM with Elastic Net), K-Means, PCA, Generalized Additive Models (GAM), RuleFit, Support Vector Machine (SVM), Stacked Ensembles, Automatic Machine Learning (AutoML), etc.
http://docs.h2o.ai/h2o/latest-stable/h2o-docs/data-science/xgboost.html
says:
_normalizetype: When booster="dart", specify whether the normalization method. This can be one of the following: tree
I think the word "whether" should be removed.