pandas排序

obj = pd.Series(range(4),index=[‘d’,’a’,’b’,’c’])
a = obj.sort_index()
print(a)

frame = pd.DataFrame(np.arange(8).reshape(2,4),index=[‘three’,’one’],columns=[‘d’,’a’,’b’,’c’])
a = frame.sort_index()
print(a)

frame = pd.DataFrame(np.arange(8).reshape(2,4),index=[‘three’,’one’],columns=[‘d’,’a’,’b’,’c’])
a = frame.sort_index(axis=1)
print(a)
按降序排列
frame = pd.DataFrame(np.arange(8).reshape(2,4),index=[‘three’,’one’],columns=[‘d’,’a’,’b’,’c’])
a = frame.sort_index(axis=1，ascending = False)
print(a)