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                                            WatsonCao

Check failed: (best_split_info.left_count) > (0)

Same issue. Is there any method to avoid this issue like changing some params?

Training many models with gpu_hist in Optuna yields ‘parallel_for failed: out of memory’

> I have been facing similar issues when running xgb.cv with optuna. On closer inspection I saw that this was because of GPU going out of memory. This was confirmed...

阿里云函数

![image](https://user-images.githubusercontent.com/25975419/192935511-9332cb03-79b9-47df-9bee-88e181940565.png) 现在很头疼

sma or ts_sum?

036貌似也有同样的问题 ![image](https://github.com/popbo/alphas/assets/25975419/7e371a48-9867-4868-8d7a-ed17aec21e68)