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中级

查看LR预测的违约概率分布

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中级参考 代码结构已给出,请填写 ____ 处
def solve():
    from pyodide.http import open_url
    from io import StringIO
    loans_clean_csv = open_url(____).read()
    loans_featured_csv = open_url(____).read()
    scorecard_data_csv = open_url(____).read()
    woe_table_csv = open_url(____).read()
    import pandas as pd
    from sklearn.linear_model import LogisticRegression
    from sklearn.model_selection import train_test_split
    from io import StringIO
    df = pd.read_csv(StringIO(____))
    woe_cols=[c for c in df.columns if c.endswith(____)]
    X=df[woe_cols].fillna(____); y=df['____']
    X_tr,X_te,y_tr,y_te=train_test_split(____)
    lr=LogisticRegression(____); lr.fit(____)
    prob=lr.predict_proba(____)[:,____]
    print(pd.Series(____).describe().round(____).to_string())
    print(____)
    print(____)

示例

输入
solve()
期望输出
count    2000.0000
mean        0.1895
std         0.1052
min         0.0470
25%         0.1158
50%         0.1656
75%         0.2487
max         0.5617
违约样本平均概率: 0.2480
正常样本平均概率: 0.1757
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