References

Sarkar, Dipanjan (DJ). 2018. “A Comprehensive Guide to the Grammar of Graphics for Effective Visualization of Multi-Dimensional….” Medium. https://towardsdatascience.com/a-comprehensive-guide-to-the-grammar-of-graphics-for-effective-visualization-of-multi-dimensional-1f92b4ed4149.
Severance, Dr Charles Russell. 2016. Python for Everybody: Exploring Data in Python 3. Edited by Sue Blumenberg and Elliott Hauser. Ann Arbor, MI: CreateSpace Independent Publishing Platform. https://www.py4e.com/html3/.
Wickham, H. 2015. Advanced R. Chapman & Hall/CRC The R Series. CRC Press. https://books.google.com/books?id=FfsYCwAAQBAJ.
Wickham, H., and G. Grolemund. 2016. R for Data Science: Import, Tidy, Transform, Visualize, and Model Data. O’Reilly Media. https://books.google.com/books?id=vfi3DQAAQBAJ.
Wilkinson, Leland. 2005. The Grammar of Graphics. 2nd ed. Statistics and Computing. New York: Springer Science.