[FIXED] How to set hyperparameters with a dictionary

Issue

model = lightgbm.LGBMClassifier()  
hyperparameter_dictionary = {'boosting_type': 'goss',   'num_leaves': 25, 'n_estimators': 184, ...}  

How do I set the model's hyperparameters with the dictionary?

Thanks!

Solution

pass the hyperparam dictionary to the model constructor, adding ** to the dict to pass each dict item like a kwarg param as lgbm expects it per https://lightgbm.readthedocs.io/en/latest/pythonapi/lightgbm.LGBMClassifier.html#lightgbm.LGBMClassifier:

hyperparameter_dictionary = {'boosting_type': 'goss', 'num_leaves': 25, 'n_estimators': 184}
model = lightgbm.LGBMClassifier(**hyperparameter_dictionary)

TEST:

print(model)

LGBMClassifier(boosting_type='goss', ... n_estimators=184, n_jobs=-1, num_leaves=25,...)

Answered By - Max Power