尝试访问 pandas 数据框列时出现键盘错误

Question

我正在尝试创建一个 pandas 数据框列并使用它的列名访问该列，这会给出一个错误 KeyError: 'cluster'

代码

import pandas as pd
from scipy.cluster.hierarchy import fclusterdata

max_dist = 3
points = [(3, 2), (6, 2), (6, 5), (10, 1), (12, -2), (5, 7)]
clusters = fclusterdata(points, t=max_dist, criterion='distance')
clustered_points = (pd.DataFrame(points, columns=['x', 'y'], index=clusters)
                      .rename_axis(index='cluster'))
clustered_points['cluster']

如何解决这个错误。

Answer 1


    import pandas as pd
    from scipy.cluster.hierarchy import fclusterdata
    
    max_dist = 3
    points = [(3, 2), (6, 2), (6, 5), (10, 1), (12, -2), (5, 7)]
    clusters = fclusterdata(points, t=max_dist, criterion='distance')
    
    df = pd.DataFrame(points, columns=['x', 'y'])
    df["clusters"] = clusters
    print(df["clusters"])

如果您正在尝试访问“集群”列，我认为这就是方法。

尝试访问 pandas 数据框列时出现键盘错误

keyerror while tring to access pandas dataframe column

python

pandas