我想创建一个新的列，基于文本，包含在另一个列字符串值。我有一个大df与列'start_url':
做法:
df (' start_url '] .head (4)
https://sitename.com/- 0
- 1 https://sitename.com/about/news/
- 2 https://sitename.com/?click_id=8YeZ1Ti4adZixjK&城市= https://sitename.com//product/
- 3
我想要这样写:
df (' start_event '] .head (4)
- 0 mainscreen <
- 1新闻/gh>
- 2 city_selection 3 product_page
最简单的方法是什么?
您可以使用Series.map()函数来完成此操作:
your_dic = {
"https://sitename.com/": "mainscreen",
"https://sitename.com/about/news/": "news",
"https://sitename.com/?click_id=8YeZ1Ti4adZixjK&city=City": "city_selection",
"https://sitename.com//product/": "product_page"
}
df['start_event'] = df['start_url'].map(your_dic)