Pandas DataFrame, Series 정렬

라이브러리 가져오기

from pandas import DataFrame, Series
import numpy as np

Series

색인으로 정렬

##### Series  sort_index   
obj = Series([1, 3, 2, 5, 6], index=list('dabce'))
obj.sort_index()
obj.sort_index(ascending=False)

값순

##### Series  sort_values   
obj.sort_values()
obj.sort_values(ascending=False)

DataFrame

색인으로 정렬

frame = DataFrame(np.random.randn(4, 3), columns=list('dbe'),index=['Ut', 'Oh', 'Tex', 'Ore']) 
frame.sort_index() #  frame.sort_index(axis=0) 
frame.sort_index(ascending=False)               
frame.sort_index(axis=1) 
frame.sort_index(axis=1, ascending=False) 

값순

##### DataFrame 
frame = DataFrame({'a': [1, 3, 1, 5], 'b': [2, 1, 4, 6]})
# sort_values 
frame.sort_values(by=['a', 'b'], ascending=[True, True])
frame.sort_values(by=['a', 'b'], ascending=[True, False])