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
Introduction to Data and Programming with Python 197

