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Classic books

Time to use your new DataFrame skills to analyze the books dataset one last time.

You are working for a publisher that wants to spotlight classic books this month. Can you analyze the DataFrame df_books to find the top-rated books published before 1900?

df_books is available in your environment.

This exercise is part of the course

Introduction to Julia

View Course

Exercise instructions

  • Filter the DataFrame to rows where the integer in the original_publication_year column is less than 1900.
  • Sort the df_old_books DataFrame by the average_rating column, sorting from high to low.
  • Print the first five rows of the DataFrame to show the top-rated old books.

Hands-on interactive exercise

Have a go at this exercise by completing this sample code.

# Filter to books which were published before 1900
df_old_books = ____(row -> ____, ____)

# Sort these books by rating
df_old_books_sorted = ____(____, "____", rev=____)

# Print the 5 top-rated old books
println(____)
Edit and Run Code