For loop to convert strings based on last word not running
发布于2023-02-05 16:21 阅读(641) 评论(0) 点赞(30) 收藏(1)
I am trying to write a for-loop in python on a pandas dataframe. I want to convert all strings in the color column that have "Green" as their last word (ex. Yellowish Green") to just "Green". Below is my loop:
for color in df['color']:
low = color.split()
if low[-1] == "Green":
color = "Green"
However, this is not changing the actual values in the dataframe.
解决方案
You can do:
def transform(string):
last_word = string.split()[-1]
if last_word.lower() == 'green':
return 'green'
else:
return string
df['color'] = df['color'].apply(transform)
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