Why is Python-R useful for Data Science-What are some of your favorite functions-libraries in Python-R?

R vs Python for Data Science

Prompt: Identify three advantages of using Python or R for data science and briefly explain your reasoning. Also include answers to the following questions:
Why is Python or R useful for Data Science?
What are some of your favorite functions or libraries in Python or R?
Compare Python and R and other data science languages you might already be familiar with, if any?

Write up should be 1-2 Pages 12 sized font double spaced