Eli5: AttributeError：‘AttributeError’对象没有属性'highlight_spaces‘

Question

有谁能向我解释如何使用eli5打印，用scikit来筛选估计者的权重的重要性呢？

我写了这个：

import pandas as pd
import numpy as np
import sklearn
import eli5
import warnings
warnings.filterwarnings("ignore")
from sklearn.datasets import load_boston
from sklearn.model_selection import train_test_split
from sklearn.linear_model import LinearRegression
from eli5 import show_weights,format_as_text


boston = load_boston()

for line in boston.DESCR.split("\n")[5:27]:
    print(line)

boston_df = pd.DataFrame(data=boston.data, columns = boston.feature_names)
boston_df["Price"] = boston.target


X, Y = boston.data, boston.target
X_train, X_test, Y_train, Y_test = train_test_split(X, Y, train_size=0.90, test_size=0.1, random_state=123, shuffle=True)
X_train.shape, X_test.shape, Y_train.shape, Y_test.shape

lr = LinearRegression()
lr.fit(X_train, Y_train)

print(format_as_text(show_weights(lr, feature_names=boston.feature_names)))

但错误是：

  File "check_eli5.py", line 29, in <module>
    print(format_as_text(show_weights(lr, feature_names=boston.feature_names)))
  File "/Users/slowatkela/anaconda/lib/python3.7/site-packages/eli5/formatters/text.py", line 65, in format_as_text
    highlight_spaces = should_highlight_spaces(expl)
  File "/Users/slowatkela/anaconda/lib/python3.7/site-packages/eli5/formatters/utils.py", line 64, in should_highlight_spaces
    hl_spaces = bool(explanation.highlight_spaces)
AttributeError: 'HTML' object has no attribute 'highlight_spaces'

当我在没有show_weights(lr, feature_names=boston.feature_names)部件的情况下执行format_text时，错误是：

Traceback (most recent call last):
  File "check_eli5.py", line 29, in <module>
    file.write(show_weights(lr, feature_names=boston.feature_names))
TypeError: write() argument must be str, not HTML

值得一提的是，我任意选择了这个库，所以如果有另一个库更适合于非HTML输出，那么我也很乐意移动。

Answer 1

我认为在您的情况下，explain_weights可能是比show_weights更好的功能。它返回一个Explanation对象，该对象可以用其他函数(如format_as_text )格式化(并在jupyter笔记本中显示为html )。