KDnuggets™ News 21:n18, May 12: Data Preparation in SQL, with Cheat Sheet!; Rebuilding 7 Python Projects

Data Preparation in SQL, with Cheat Sheet!; Rebuilding My 7 Python Projects; Applying Python’s Explode (*7*) to Pandas DataFrames; Essential Linear Algebra for Data Science and Machine (*7*); Similarity Metrics in NLP