成功解决RuntimeWarning: invalid value encountered in double_scalars

成功解决RuntimeWarning: invalid value encountered in double_scalars

 

 

 

目录

解决问题

解决思路

解决方法


 

 

 

 

 

解决问题

print("Best: %.4f using %s" % (grid_result.best_score_, grid_result.best_params_))
print("XGBR_GSCV_Time score:", (-grid_result.best_score_)** 0.5)

RuntimeWarning: invalid value encountered in double_scalars

 

 

 

解决思路

运行时警告:在双刻度中遇到无效值

 

 

 

解决方法

grid_result.best_score_获得的该数值不符合计算要求!
T1、浮点数太大,需要精度限制,将小数点进行限制后,才可求得!
T2、根号下必须为正数,如以下修改

print("XGBR_GSCV_Time score:", (-round(-grid_result.best_score_, 3))** 0.5)

哈哈,大功告成!

 

 

 

 

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