CSC50S: Advanced Data Structures : Lesson1: Pandas Library

Which Python Library is used to manipulate the data so that it becomes readable and organised?

• NumPy

• Library 1

• Python np

• Pandas

Choose the correct statement to add Pandas library in program?

• import numpy as np

• import P as pandas

• import pandas as pd

• import pandas

What is DataFrame?

• A data structure from Pandas library

• A frame in which data is kept

• A frame of windows

• A data structure from Numpy Library

Which of the following commands is used to convert array named "grades" into data frame named "df_grades"?

• df_grades = grades

• df_grades = pd.DataFrame(grades)

• df_grades = pd.DataFrame("grades")

• grades = pd.DataFrame(df_grades)

Which of the following commands can be used to print data frame df_grades?

• Print("df_grades")

• print("df_grades")

• print(df_grades)

• display(df_grades)

Which of the following statements will give header to columns for df_grdaes DataFrame?

• df_grades.column

• df_grades.columns

• df_grades_columns

• df_grades.columnnames

What will the following statement do?

df_grades.index = ["Amna"]

• It will add name amna in dataframe

• It will add grades for Amna

• It will add Amna as a new row header for index 0

• It will delete Amna from data frame

Which of the following command can be used to append new column "Chemistry" with values 91 and 90 in df_grades?

• df_grades["Chemistry"] = [92, 90 ]

• df_grades.add=["Chemistry", 92, 92]

• df_grades = "Chemistry", 90, 92

• df_grades.index = "Chemistry", 92, 92

What is the output of the code in image?

• 
• 
• 
• It will have an error / no output

What is the use of append() function?

• To add new row in data frame

• To add new column in data frame

• To edit last row in data frame

• To remove first row in data frame