请给我一个包含四列的数据框,它们分别是[键,摘要,描述和summary_description],所以我要处理summary_description,尝试应用RegEx并将新结果提取到[New_column]中,所以我完成了循环但我不确定是什么问题导致无法正常工作。如果有人可以帮忙,请多多关照。
fetch('users.json')
.then(res=>res.json())
.then(users=>{
users.forEach(user=>{
out+=`
<div id='module'>
<h3>Name: ${user.name}<h3>
<h3>Email: ${user.email}<h3>
<h3>Number: ${user.number}<h3>
</div>`
})
parentDiv.innerHTML=out;
})
错误:
import pandas as pd
import re
dataf= pd.read_excel(r'C:\Users\malotaibi\Desktop\Last update\result.xlsx')
dataf
dataf.head(5)
dataf['New_Column'][i] = re.sub('[^A-Za-z0-9]+', ' ', dataf['Summary_Description'][i])
print (dataf['New_column'][i])
答案 0 :(得分:1)
您可以这样做:
dataf['New_Column'] = dataf['Summary_Description'].str.replace('[^A-Za-z0-9]+', ' ')
答案 1 :(得分:0)
您已尝试在创建新列之前将其添加。
import pandas as pd
import re
dataf= pd.read_excel(r'C:\Users\malotaibi\Desktop\Last update\result.xlsx')
dataf
dataf.head(5)
dataf['New_Column'] = 1 # this will create the new_column entry and set all its values to 1
您现在可以循环浏览并将每个值设置为所需的值。我假设您要使用类似的东西:
for i in range(len(dataf['Summary_Description'])):
dataf['New_Column'][i] = re.sub('[^A-Za-z0-9]+', ' ', dataf['Summary_Description'][i])