Dear Contributors and Members,
I am trying to apply XGBoost to the assessment of environmental risk, where each variables should be within the zone of reasonableness. For example. the concentration of a certain pollutant should not be less than 0. However, in my model, I got a prediction with few negative values. Is there any way to prescribe a limit to response value when training a model? Or the only thing I can do is change these negative values to zero.
I would greatly appreciate any explanation or suggestions in this matter.
PS: I’m using xgboost 18.104.22.168 in R 3.6.1.
With kind regards,