Page 199 - Robotics and AI class 10
P. 199

Name  Marks

              11        Riya       92
              22     Sonali        90
              33      Sneha        89

              44      Nitin        84
               • Adding a new column
               f2['Section']=['A','E','C']

              print(f2)
                        Name  Marks        Section

              11        Riya       92             A
              22     Sonali        90             E
              33      Sneha        89             E
              44      Nitin        84             C
               • Modifying an existing Row
               f2.loc[33]=['Sneha',95,'C']

              print(f2)
                        Name  Marks        Section
              11        Riya       92             A
              22     Sonali        97             E
              33      Sneha        95             C
              44      Nitin        89             C
               • Modifying an existing column
               f2['Marks']=[92,97,91,89]

              print(f2)
                        Name  Marks        Section

              11        Riya       92             A
              22     Sonali        97             E
              33      Sneha        91             E
              44      Nitin        89             C
               • Deleting a Row
                 To delete a row or a column, the .drop() method is used with the DataFrame. The parameter axis=0 is used for
               deleting a row and axis=1 for deleting a column.
               f2=f2.drop(22,axis=0)

              print(f2)
                        Name  Marks        Section

              11        Riya       92             A
              33      Sneha        89             E
              44      Nitin        84             C





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