如何解决ValueError长度不匹配预期轴包含2个元素,新值包含3个元素
def bar1():
df=pd.read_csv('#CSVFILELOCATION#',encoding= 'unicode_escape')
x=np.arange(11)
df=df.set_index(['Country'])
dfl=df.iloc[:,[4,9]]
w=dfl.groupby('Country')['SummerTotal','WinterTotal'].sum()
final_df=w.sort_values(by='Country').tail(11)
final_df.reset_index(inplace=True)
final_df.columns=('Country','SummerTotal','WinterTotal')
final_df=final_df.drop(11,axis='index')
Countries=df['Country']
STotalMed=df['SummerTotal']
WTotalMed=df['WinterTotal']
plt.bar(x-0.25,STotalMed,label='Total Medals by Countries in Summer',color='g')
plt.bar(x+0.25,WTotalMed,label='Total Medals by Countries in Winter',color='r')
plt.xticks(r,Countries,rotation=30)
plt.title('Olympics Data Analysis of Top 10 Countries',color='red',fontsize=10)
plt.xlabel('Countries')
plt.ylabel('Total Medals')
plt.grid()
plt.legend()
plt.show()
这是我在项目中使用的条形图的代码 在这里有错误
ValueError:长度不匹配:预期轴有2个元素,新值有3个元素
请帮助我快速提交此项目
CSV:
Country SummerTimesPart Sumgoldmedal Sumsilvermedal Sumbronzemedal SummerTotal WinterTimesPart Wingoldmedal Winsilvermedal Winbronzemedal WinterTotal TotalTimesPart Tgoldmedal Tsilvermedal Tbronzemedal TotalMedal
Afghanistan 14 0 0 2 2 0 0 0 0 0 14 0 0 2 2
Algeria 13 5 4 8 17 3 0 0 0 0 16 5 4 8 17
Argentina 24 21 25 28 74 19 0 0 0 0 43 21 25 28 74
Armenia 6 2 6 6 14 7 0 0 0 0 13 2 6 6 14
Australasia 2 3 4 5 12 0 0 0 0 0 2 3 4 5 12
Australia 26 147 163 187 497 19 5 5 5 15 45 152 168 192 512
Austria 27 18 33 36 87 23 64 81 87 232 50 82 114 123 319
Azerbaijan 6 7 11 24 42 6 0 0 0 0 12 7 11 24 42
Bahamas 16 6 2 6 14 0 0 0 0 0 16 6 2 6 14
Bahrain 9 2 1 0 3 0 0 0 0 0 9 2 1 0 3
Barbados 12 0 0 1 1 0 0 0 0 0 12 0 0 1 1
Belarus 6 12 27 39 78 7 8 5 5 18 13 20 32 44 96
Belgium 26 40 53 55 148 21 1 2 3 6 47 41 55 58 154
Bermuda 18 0 0 1 1 8 0 0 0 0 26 0 0 1 1
Bohemia 3 0 1 3 4 0 0 0 0 0 3 0 1 3 4
Botswana 10 0 1 0 1 0 0 0 0 0 10 0 1 0 1
Brazil 22 30 36 63 129 8 0 0 0 0 30 30 36 63 129
British West Indies 1 0 0 2 2 0 0 0 0 0 1 0 0 2 2
Bulgaria 20 51 87 80 218 20 1 2 3 6 40 52 89 83 224
Burundi 6 1 1 0 2 0 0 0 0 0 6 1 1 0 2
Cameroon 14 3 1 2 6 1 0 0 0 0 15 3 1 2 6
INFO-----> SummerTimesPart : No. of times participated in summer by each country
WinterTimesPart : No. of times participated in winter by each country
解决方法
需要一些更改才能使图表起作用:
- 需要一个滴答数组以绘制国家/地区名称
- 将
final_df
用于图表数据,而不是df
- 设置条形宽度,以使条形不会重叠
这是更新的代码:
data = '''
Country SummerTimesPart Sumgoldmedal Sumsilvermedal Sumbronzemedal SummerTotal WinterTimesPart Wingoldmedal Winsilvermedal Winbronzemedal WinterTotal TotalTimesPart Tgoldmedal Tsilvermedal Tbronzemedal TotalMedal
Afghanistan 14 0 0 2 2 0 0 0 0 0 14 0 0 2 2
Algeria 13 5 4 8 17 3 0 0 0 0 16 5 4 8 17
Argentina 24 21 25 28 74 19 0 0 0 0 43 21 25 28 74
Armenia 6 2 6 6 14 7 0 0 0 0 13 2 6 6 14
Australasia 2 3 4 5 12 0 0 0 0 0 2 3 4 5 12
Australia 26 147 163 187 497 19 5 5 5 15 45 152 168 192 512
Austria 27 18 33 36 87 23 64 81 87 232 50 82 114 123 319
Azerbaijan 6 7 11 24 42 6 0 0 0 0 12 7 11 24 42
Bahamas 16 6 2 6 14 0 0 0 0 0 16 6 2 6 14
Bahrain 9 2 1 0 3 0 0 0 0 0 9 2 1 0 3
Barbados 12 0 0 1 1 0 0 0 0 0 12 0 0 1 1
Belarus 6 12 27 39 78 7 8 5 5 18 13 20 32 44 96
Belgium 26 40 53 55 148 21 1 2 3 6 47 41 55 58 154
Bermuda 18 0 0 1 1 8 0 0 0 0 26 0 0 1 1
Bohemia 3 0 1 3 4 0 0 0 0 0 3 0 1 3 4
Botswana 10 0 1 0 1 0 0 0 0 0 10 0 1 0 1
Brazil 22 30 36 63 129 8 0 0 0 0 30 30 36 63 129
BritishWestIndies 1 0 0 2 2 0 0 0 0 0 1 0 0 2 2
Bulgaria 20 51 87 80 218 20 1 2 3 6 40 52 89 83 224
Burundi 6 1 1 0 2 0 0 0 0 0 6 1 1 0 2
Cameroon 14 3 1 2 6 1 0 0 0 0 15 3 1 2 6
'''.strip()
with open('data,csv','w') as f: f.write(data) # write test file
############################
import numpy as np
import pandas as pd
import matplotlib.pyplot as plt
def bar1():
df=pd.read_csv('data,encoding= 'unicode_escape',sep=' ',index_col=False)
x=np.arange(11)
df=df.set_index(['Country'])
dfl=df.iloc[:,[4,9]]
w=dfl.groupby('Country')['SummerTotal','WinterTotal'].sum()
final_df=w.sort_values(by='Country').tail(11)
final_df.reset_index(inplace=True)
final_df.columns=('Country','SummerTotal','WinterTotal')
print(final_df)
# final_df=final_df.drop(11,axis='index')
Countries=final_df['Country']
STotalMed=final_df['SummerTotal']
WTotalMed=final_df['WinterTotal']
plt.bar(x-0.25,STotalMed,width=.2,label='Total Medals by Countries in Summer',color='g')
plt.bar(x+0.25,WTotalMed,label='Total Medals by Countries in Winter',color='r')
plt.xticks(np.arange(11),Countries,rotation=30)
plt.title('Olympics Data Analysis of Top 10 Countries',color='red',fontsize=10)
plt.xlabel('Countries')
plt.ylabel('Total Medals')
plt.grid()
plt.legend()
plt.show()
bar1()
输出
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