擅长:python、mysql、java
<p>另一种方法是定义一个函数,然后使用<code>df.map()</code></p>
<pre><code>def age_group(age):
if age < 25: ageGroup = "kid"
elif (age >= 25) and (age < 50): ageGroup = "young"
else: ageGroup = "old"
return ageGroup
df['AgeGroup'] = df['Age'].map(age_group)
</code></pre>