Warning: file_get_contents(/data/phpspider/zhask/data//catemap/2/python/282.json): failed to open stream: No such file or directory in /data/phpspider/zhask/libs/function.php on line 167

Warning: Invalid argument supplied for foreach() in /data/phpspider/zhask/libs/tag.function.php on line 1116

Notice: Undefined index: in /data/phpspider/zhask/libs/function.php on line 180

Warning: array_chunk() expects parameter 1 to be array, null given in /data/phpspider/zhask/libs/function.php on line 181
Python 熊猫,按操作列分组_Python_Pandas - Fatal编程技术网

Python 熊猫,按操作列分组

Python 熊猫,按操作列分组,python,pandas,Python,Pandas,我想买这样的东西 df = pd.DataFrame({'id': [1,2,3,4,5,6,7,8,9,10], 'Col1': ['a','b','c','d','a','b','c','d','a','b'], 'Col2': ['s','t','u','v','w','x','s','t','u','v']}) id Col1 Col2 0 1 a s 1 2 b t 2 3 c u 3 4 d v 4 5 a w 5

我想买这样的东西

df = pd.DataFrame({'id': [1,2,3,4,5,6,7,8,9,10], 'Col1': ['a','b','c','d','a','b','c','d','a','b'], 'Col2': ['s','t','u','v','w','x','s','t','u','v']})


   id Col1 Col2
0   1   a   s
1   2   b   t
2   3   c   u
3   4   d   v
4   5   a   w
5   6   b   x
6   7   c   s
7   8   d   t
8   9   a   u
9   10  b   v
我用groupby关键字搜索了stackoverflow,但没有找到与我类似的问题

   id Col1 Col2
0   1   a   s
1   5   a   w
2   9   a   u
3   2   b   t
4   6   b   x
5   10  b   v
6   3   c   u
7   7   c   s
8   4   d   v
9   8   d   t
印刷品:

print( df.sort_values(['Col1', 'id', 'Col2'], ignore_index=True) )
df.sort\u值('Col1')
   id Col1 Col2
0   1    a    s
1   5    a    w
2   9    a    u
3   2    b    t
4   6    b    x
5  10    b    v
6   3    c    u
7   7    c    s
8   4    d    v
9   8    d    t