如何在 csv 文件中將一列元素保存為一行？

Question

如何將一列元素作為行/列表保存在 CSV 文件中？

下面是我的代碼的相關部分......

import pandas as pd

df=pd.DataFrame(tbl,columns=['type','skill','job1','job2','m1','m2'])
df2=df['skill']

print(type(df2))
print(df2)

...及其相應的結果...

<class 'pandas.core.series.Series'>

1                statistics
26         highly motivated
32                     team
...
93                knowledge
94                  curious
95                      can
96                    lives
98             early talent
99           talent program
100         computer skills
101     process development
102             soft skills
103           early program
Name:  skill, dtype: object

我想要的 output 將是一個 CSV 文件，其中所有單詞都列在一行中，並用逗號分隔，即

statistics, highly motivated, team, ..., knowledge, curious, can, lives, early talent, ...

Answer 1

pandas 方法是轉置單列 dataframe：

df2=df[['skill']]   # the double brackes ensure that df2 is a dataframe
df2.transpose.to_csv('out.csv', header=None)

這將生成（使用您的示例數據）：

statistics,highly motivated,team,knowledge,curious,can,lives,early talent,talent program,computer skills,process development,soft skills,early program

好消息是它將正確處理包含逗號或換行符的字段......

Answer 2

您可以這樣做...對於任何列以根據需要獲取數據；

col_to_str = ", ".join(list(df['Column_Name']))
# Export as CSV
import pandas as pd
df1 = pd.DataFrame({"Column_Name":[col_to_str]})
df1.to_csv("export.csv",index=False)

希望這可以幫助...