Open jangjusung opened 2 years ago
data={'state':['Ohio','Ohio','Ohio', 'Nevada','Nevada','Nevada'], 'year' : [2000,2001,2002,2001,2002,2003], 'pop': [1.5, 1.7, 3.6, 2.4, 2.9, 3.2]} frame = pd.DataFrame(data) frame
frame2=pd.DataFrame(data,columns=['year','state','pop','debt'], index=['one','two','three','four','five','six']) frame2
frame2.columns
frame2['state']
frame2['debt']=16.5 frame2
frame2['debt']=np.arange(6.) frame2
frame2['eastern']=frame2.state=='Ohio' #열추가 frame2
del frame2['eastern'] #열 삭제 frame2.columns
frame2.values
data={'state':['Ohio','Ohio','Ohio', 'Nevada','Nevada','Nevada'], 'year' : [2000,2001,2002,2001,2002,2003], 'pop': [1.5, 1.7, 3.6, 2.4, 2.9, 3.2]} frame = pd.DataFrame(data) frame
frame2=pd.DataFrame(data,columns=['year','state','pop','debt'], index=['one','two','three','four','five','six']) frame2
frame2.columns
frame2['state']
frame2['debt']=16.5 frame2
frame2['debt']=np.arange(6.) frame2
frame2['eastern']=frame2.state=='Ohio' #열추가 frame2
del frame2['eastern'] #열 삭제 frame2.columns
frame2.values