snortsniper15/R-Programming-Tutorial — reverse-engineered prompt

Build me a beginner friendly R programming tutorial that someone can open and follow from zero experience. I want it organized as a day by day set of Jupyter notebooks, starting with what R is and how to get set up, then moving through comments, variables, constants, data types, printing, user input, operators, if...else, loops, functions, strings, vectors, matrices, lists, arrays, data frames, factors, and basic data visualization.

Keep the writing simple and practical, like a teacher explaining it to a student. Each lesson should have short explanations, runnable R examples, and a few small practice tasks so the learner can try things right away. Include a final example notebook and a small case study that brings the basics together with simple data analysis and charts.

Please make the README welcoming and clear, with instructions for opening the notebooks and the order to study them. Look up current docs online if you need to.