인프런 커뮤니티 질문&답변

5회 2형 lightgbm으로 작성하면 아래와 같은 문구가 나타납니다. 혹시 어떤 부분이 잘못되었을까여??

< 코드 >

x_train = pd.get_dummies(x_train)
x_test = pd.get_dummies(x_test)

from sklearn.model_selection import train_test_split
xx_train, xx_test, yy_train, yy_test = train_test_split(x_train, y_train, test_size = 0.2, random_state = 42)

import lightgbm as lgb
model_g = lgb.LGBMRegressor(n_estimators = 150, max_depth = 4, random_state = 42)
model_g.fit(xx_train, yy_train)
pred_t_g = model_g.predict(xx_test)

< 에러 메세지 >

[LightGBM] [Warning] Found whitespace in feature_names, replace with underlines

[LightGBM] [Info] Auto-choosing row-wise multi-threading, the overhead of testing was 0.000399 seconds.

You can set force_row_wise=true to remove the overhead.

And if memory is not enough, you can set force_col_wise=true.

[LightGBM] [Info] Total Bins 395

[LightGBM] [Info] Number of data points in the train set: 3007, number of used features: 23

[LightGBM] [Info] Start training from score 12318.722980

[LightGBM] [Warning] No further splits with positive gain, best gain: -inf

[LightGBM] [Warning] No further splits with positive gain, best gain: -inf