python Pandas : How to select two equal column per row of a dataframe

Question

这是我的数据框“dfm”:

match   org_o                         group 
012       012 Smile Communications     92   
012       012 Smile                    92   
10types   10TYPES                      93   
10types   10types.com                  93   
360works  360WORKS                     94   
360works  360works.com                 94   
400 IBM   AS/400 Division              36   
6c f3f    IBM Internal US Division     36   

我想选择具有相同“组”编号和相同“匹配”的行。所以结果看起来像这样:

   match    org_o                         group 
    012       012 Smile Communications     92   
    012       012 Smile                    92   
    10types   10TYPES                      93   
    10types   10types.com                  93   
    360works  360WORKS                     94   
    360works  360works.com                 94

有人知道我如何在 python pandas 中做到这一点吗？

Answer 1

对 'group' 和 'match' 执行 groupby，然后对 'org_o' > 1 的计数执行 filter:

In [245]:

df.groupby(['group', 'match']).filter(lambda x: x['org_o'].count() > 1)
Out[245]:
      match                     org_o  group
0       012  012 Smile Communications     92
1       012                 012 Smile     92
2   10types                   10TYPES     93
3   10types               10types.com     93
4  360works                  360WORKS     94
5  360works              360works.com     94