擅长:python、mysql、java
<p>您可以将<code>lreshape</code>与<a href="http://pandas.pydata.org/pandas-docs/stable/generated/pandas.DataFrame.sort_values.html" rel="nofollow">^{<cd2>}</a>一起使用:</p>
<pre><code>df['T1'] = 1
df['T2'] = 2
df = (pd.lreshape(df, {'Test': ['T1', 'T2'],
'Date': ['Test 1', 'Test 2'],
'Score': ['Score 1', 'Score 2']}))
#reorder columns, sort dataframe by Name
df = df[['Name','Test','Date','Score']].sort_values('Name', ascending=False)
print (df)
Name Test Date Score
0 John 1 Sept 1
3 John 2 Dec 2
1 Jane 1 Sept 1
4 Jane 2 Dec 3
2 James 1 Sept 2
5 James 2 Dec 2
</code></pre>
<hr/>
<p><code>pd.lreshape</code>文档不是很好,但是您可以使用:</p>
^{pr2}$