Andrew and Daphne ... Dat Science Specialization Coursera Tidying Data With Tidyr ... potential in this type of e-learning that they put their professions as professors at Stanford on hold and began focusing entirely on the MOOC website. Reflecting on it, they certainly made the best choice, as only seven years later, the business they produced is already valued at over $1 billion.
Dat Science Specialization Coursera Tidying Data With Tidyr