擅长:python、mysql、java
<pre><code>df = pd.DataFrame({'Sample ID': [1,2,3], 'Sample Type':['Metastatis', 'Metastasis', 'Primary'],
})
df
Sample ID Sample Type
0 1 Metastatis
1 2 Metastasis
2 3 Primary
df.sort_values(by='Sample Type')
Sample ID Sample Type
1 2 Metastasis
0 1 Metastatis
2 3 Primary
df.sort_values(by='Sample Type', ascending=False)
Sample ID Sample Type
2 3 Primary
0 1 Metastatis
1 2 Metastasis
</code></pre>