King County’s Restaurant Inspection Grades, which is based upon the average of red-card violations in the past four inspections I’m exploring the Python stack for data analysis and machine learning. I know I’m late to the party, but have only recently discovered the impressive Jupyter Notebook (formerly IPython) data analysis platform and community. It makes “storytelling from data” easy. But doing so with ease requires fluency with a sometimes unintuitive yet very powerful syntax. Today’s…