下面小编就为大家分享一篇pandas多级分组实现排序的方法，具有很好的参考价值，希望对大家有所帮助。一起跟随小编过来看看吧
pandas有groupby分组函数和sort_values排序函数，但是如何对dataframe分组之后排序呢？
In [70]: df = pd.DataFrame(((random.randint(2012, 2016), random.choice(['tech', 'art', 'office']), '%dk-%dk'%(random.randint(2,10), random.randint(10, 20)), '') for _ in xrange(10000)), columns=['publish_time', 'classf', 'salary', 'title']) In [71]: df.head() Out[71]: publish_time classf salary title 0 2012 art 2k-19k 1 2014 office 5k-17k 2 2013 office 2k-10k 3 2013 art 5k-14k 4 2013 art 2k-14k In [72]: df.groupby(['publish_time', 'classf', 'salary']).count()['title'].groupby(level=0, group_keys=False).nlargest(10) Out[72]: publish_time classf salary 2012 art 7k-13k 18 4k-13k 16 tech 3k-12k 14 art 6k-16k 13 8k-15k 13 office 5k-18k 13 tech 4k-14k 13
