[Python] 11. pandas DataFrame 인덱싱(Indexing), 슬라이싱(Slicing) 예제
import pandas as pd import numpy as np data = {'eng':[10,30,50,70], 'kor':[20,40,60,80], 'math':[90,50,20,70]} df = pd.DataFrame(data, index=['a','b','c','d'] ) df # df['a'] # df['컬럼명'] df['eng'] [OUT] : a 10 b 30 c 50 d 70 Name: eng, dtype: int64 df[['eng','math']] df['eng']['a':'c'] [OUT] : a 10 b 30 c 50 Name: eng, dtype: int64 df[['eng']] # df[슬라이싱(row)] df[1:3] df df['b':'c'] iloc 인덱싱 슬라이싱(..
