我尝试以下代码,但在执行时,它会显示以下错误:
(ValueError:x和y必须大小相同)
代码:
import pandas as pd
import matplotlib.pyplot as plt
from sklearn.preprocessing import StandardScaler
from sklearn.cluster import KMeans
df1=pd.read_excel('F:/Test PCA/Week-7-MachineLearning/weather_V2.xlsx',sheetname='Sheet1', header=0,)
df=df1.dropna();
del df['rain_accumulation']; del df['rain_duration']
features=['air_pressure', 'air_temp', 'avg_wind_direction', 'avg_wind_speed', 'max_wind_direction',
'max_wind_speed','relative_humidity']
select_df=df[features]; #print select_df.air_pressure
x=StandardScaler().fit_transform(select_df)
Kmeans=KMeans(n_clusters=12)
Model=Kmeans.fit(x); #print Model
y_kmeans = Kmeans.predict(x)
data_labels=Kmeans.labels_;
centers=Model.cluster_centers_
plt.scatter(x[:, 0], x[:, 1], c=y_kmeans, s=50, cmap='viridis')
plt.scatter(centers[:0], centers[:1], color ='k')
plt.show()