无法在Jupyter Notebook中绘制直方图

Question

我无法在Jupyter笔记本中绘制直方图。这是下面的代码以及响应它的错误消息。

import pandas as pd
import numpy as np
from sklearn.datasets import load_boston
import matplotlib.pyplot as plt

housing_data = load_boston()
%matplotlib inline
housing_data.hist(bins = 50, figsize = (20, 15))
plt.show()

KeyError                                  Traceback (most recent call last)
/anaconda3/lib/python3.6/site-packages/sklearn/utils/__init__.py in          __getattr__(self, key)
60         try:
---> 61             return self[key]
62         except KeyError:

KeyError: 'hist'

During handling of the above exception, another exception occurred:

AttributeError                            Traceback (most recent call last)
<ipython-input-17-570a88b85d5d> in <module>()
----> 1 housing_data.hist(bins = 50, figsize = (20, 15))
2 plt.show();

/anaconda3/lib/python3.6/site-packages/sklearn/utils/__init__.py in    __getattr__(self, key)
 61             return self[key]
 62         except KeyError:

---> 63引发AttributeError（key）      64      65 def setstate （自身，状态）：

AttributeError: hist

我对此并不陌生，请帮助我。

Answer 1

import pandas as pd
import numpy as np
from sklearn.datasets import load_boston
import matplotlib.pyplot as plt

housing_data = load_boston()
%matplotlib inline


pd.DataFrame(housing_data['data']).hist(bins = 50, figsize = (20, 15))

您必须访问包含数据的numpy数组的字典，然后才能将其转换为pandas数据框，以便使用.hist

Answer 2

您没有指定，所以我假设您想绘制“目标”？

import pandas as pd
import numpy as np
import matplotlib.pyplot as plt
from sklearn.datasets import load_boston

housing_data = load_boston()
housing_data_2  = ({'target' : list(housing_data['target'])})
df = pd.DataFrame(data=housing_data_2)
df.plot.hist(bins = 50)