【4 weeks challenge – Python】Day 28 loc, ilocを使ってpandas.DataFrameにアクセス

import pandas as pd

df=pd.DataFrame([[1,2,3,4,5,6],
                 [10,20,30,40,50,60],
                 [100,200,300,400,500,600],
                 [1000,2000,3000,4000,5000,6000]],
                index=['row_0', 'row_1','row_2','row_3'],
                columns=['col_0','col_1','col_2','col_3','col_4','col_5'])

#locの使い方
result1 = df.loc['row_1','col_1']                       #行、列を指定して値を取得

result2 = df.loc[:,'col_0']

result3 = df.loc['row_0':'row_2','col_2':'col_5']

result4 = df.loc[['row_0','row_2'],['col_2','col_5']]

result5 = df.loc[df.index[2]:,df.columns[3]:'col_5']

result6 = df.iloc[1,1]

result7 = df.iloc[0:2]

result8 = df.iloc[:,0:2]

result9 = df.iloc[::2,::3]

result10 = df.iloc[[1,3],[3,5]]