标签:index Python dataFrame ID book pd print panda
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import pandas as pd df = pd.DataFrame(data={'id': [1, 2, 3], 'name': ['a', 'b', 'c']}) print(df) df.to_excel('z.xlsx')
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import pandas as pd df = pd.DataFrame(data={'id': [1, 2, 3], 'name': ['a', 'b', 'c']}) df = df.set_index('id') print(df) df.to_excel('z.xlsx')
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import pandas as pd dataFrame = pd.read_excel('people.xlsx', header=1, index_col='ID') dataFrame.columns = ['type', 'title', 'firstName', 'middleName', 'lastName'] # dataFrame.columns = ['id', 'type', 'title', 'firstName', 'middleName', 'lastName'] print(dataFrame.shape) print(dataFrame.columns) print(dataFrame.head(3)) print('~' * 80) print(dataFrame.tail()) # dataFrame.set_index('ID', inplace=True) dataFrame.to_excel('z.xlsx')
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import pandas as pd dataFrame = pd.read_excel('people.xlsx', header=1) dataFrame.columns = ['id', 'type', 'title', 'firstName', 'middleName', 'lastName'] print(dataFrame.shape) print(dataFrame.columns) print(dataFrame.head(3)) print('~' * 80) print(dataFrame.tail()) dataFrame.set_index('id', inplace=True) dataFrame.to_excel('z.xlsx')
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import pandas as pd d = {'x': 5, 'y': 55, 'z': 555} s1 = pd.Series(d) s2 = pd.Series(data=[5, 55, 666], index=['a', 'b', 'c'])
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import pandas as pd s1 = pd.Series([1, 2, 3], index=[1, 2, 3], name='A') s2 = pd.Series([11, 22, 33], index=[1, 2, 3], name='B') s3 = pd.Series([111, 222, 333], index=[1, 2, 3], name='C') dataFrame = pd.DataFrame({s1.name: s1, s2.name: s2, s3.name: s3}) print(dataFrame)
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import pandas as pd from datetime import date, timedelta book = pd.read_excel('book.xlsx', skiprows=3, usecols='c:f', dtype={'ID': str}) print(book) # book['ID'].at[0] = 55 d = date(2022, 5, 6) def cal_date(d: date, month: int): year_delta = month // 12 m = d.month + month % 12 if m > 12: year_delta += m // 12 m = m % 12 return date(d.year + year_delta, m, d.day) for i in book.index: # book['ID'].at[i] = i + 1 book.at[i, 'ID'] = i + 1 book['InStore'].at[i] = 'Y' if i % 2 else 'N' # book['Date'].at[i] = d + timedelta(days=i) # book['Date'].at[i] = date(d.year + i, d.month, d.day) book['Date'].at[i] = cal_date(d, i) print(book['ID'], type(book['ID'])) print(book) book.set_index('ID', inplace=True) book.to_excel('z.xlsx') for i in book.index: print(i)
标签:index,Python,dataFrame,ID,book,pd,print,panda 来源: https://www.cnblogs.com/dissipate/p/16535694.html
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