Page 198 - Robotics and AI class 10
P. 198

1      20

          2      30
                 0    1    2
          0      10   20  30
          1      11   22  33
           • With column index

          import numpy as np
          import pandas as pd
          a1 = np.array([10,20,30])

          a2 = np.array([11,22,33])
          f2=pd.DataFrame([a1,a2],columns=['R1','R2','R3'])
          print(f2)
                    R1  R2  R3

          0         10  20  30
          1         11  22  33
           • Creating a DataFrame using a Python List
           import pandas as pd

          cities = ['Delhi', 'Mumbai', 'Chennai', 'Kolkata']
          f1 = pd.DataFrame(cities)
          print(f1)
                       0

          0       Delhi
          1     Mumbai
          2  Chennai
          3  Kolkata
           • Creating a DataFrame using a Python dictionary

          import pandas as pd
          d1={'Name':['Riya','Sonali', Sneha],'Marks':[92,90,89]}
          f2=pd,DataFrame(d1,index=[11,22,33])

          print(f2)
                    Name  Marks

          11        Riya       92
          22     Sonali        90
          33       Sneha       89
        Basic Operations in a DataFrame
           • Adding a new row
           f2.loc[44]=['Nitin',84]

          print(f2)




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