Checkpoint 1-revision

Mona created a small program in Python that uses NumPy library. She used this library to store his data in a multi-dimensional _______ data structure. This structure allowed her to perform advanced mathematical and scientific calculations in his program.

•     list

•   array

In Python, to import the NumPy library as the name "np", we typically code as:

import numpy as np

Which one of the following would also be valid for importing the NumPy library?

•     import numpy as npLibrary

•   numpy import as np

Mahmoud wants to create a NumPy array using a range of values. He has typed and ran the following statement.

 

import numpy as np

array = np.arange(2, 15, 4)

print(array)

 

What is the output?

• 1. [ 2 6 10 14 ]

• 1. [ 4 6 8 10 12 14 15 ]

Mona wants to store the sportscar data in the order below in a NumPy array.

 

 

• import numpy as np
  sportsCars = np.array(["Ferrari","Lamborghini","McLaren"])

• import numpy as np
  sportsCars = np.array(["Ferrari","Lamborghini","McLaren"])

Ali created a single dimension NumPy array, as shown below.

What single function should he use to split the array into 6 rows and 2 columns?

•     reshape

•     append

Mona created a NumPy array, as shown below.

What single function should she use to change each of the rows to be a column and each column to a row?

•   transpose

•   reshape

 Ibrahim created 2 NumPy arrays to store his famous Emirati authors and their books, as shown below.

What single function should he use to append the arrays, so the final array is as follows?

• 1. reshape

• 1. vstack

Mona was given all her school’s library book details in a comma-separated values (csv) file. The file was called books.csv , and it contained the title, author, ISBN and date published for each book.

 

To store the data from the file into a Pandas dataframe, what should Farah type?

• 1. import pandas as pd

  df_books = pd.read_csv("books.csv")

• 1. import pandas as pd

  df_books = pd.to_csv("books.csv")

Look at the table showing the statistics of the top 5 drivers of the previous Formula 1 2022 season:

Zayn has stored the data in a Pandas dataframe called df_results .

 

To print only Charles Leclerc’s results, like below, what is the correct code?

• 1. print(df_results.loc["Charles Leclerc"])

• print(df_results.append["Charles Leclerc"])