python-3.x - 如何修复 : No samples will be generated with the provided ratio settings. (imblearn)

Question

我有这个代码:

从 imblearn.over_sampling 导入 ADASYN

Y = df.target
X = df.drop('target', axis=1)

ad = ADASYN()
X_adasyn, y_adasyn = ad.fit_sample(X, Y)

getting this error:

ValueError: No samples will be generated with the provided ratio 
settings.

Answer 1

我也遇到了这个问题，终于解决了!

你应该使用sampling_strategy 而不是ratio

采样策略='少数'

我尝试了其他选项，例如 'not_majority' 、'auto' 和字典形式，它们都给出了以下错误

Value Error: No samples will be generated with the provided ratio settings

但“少数派”奏效了。