擅长:python、mysql、java
<p>尝试一下:</p>
<pre class="lang-py prettyprint-override"><code>df['oms'] = ""#keep it object dtype
df.loc[(df['IMC'] <=18.5 ), 'oms'] = "slim"
df.loc[(df['IMC'] >= 18.5) & (df['IMC'] <25 ), 'oms'] = "normal"
df.loc[(df['IMC'] >= 25) & (df['IMC'] <=30 ), 'oms'] = "overweight"
df.loc[(df['IMC'] > 30), 'oms'] = "obese"
</code></pre>