dstew4/NFL-Combine-Analysis — reverse-engineered prompt

Build me a simple NFL Combine analysis project in a notebook. I want it to use combine results from 2000 through 2023 and focus on predicting 40 yard dash times from things like height, weight, BMI, strength, and agility numbers. Start by cleaning the data and doing some easy to follow exploration, then add a few clear charts that show how different positions compare, especially which groups look fastest and which ones show the best mix of speed and strength.

After that, train a few prediction models and compare them in a way a normal person can understand, with the goal of showing which one actually predicts 40 yard times best. If random forest ends up being the winner, call that out clearly. I also want plain English takeaways about what stands out by position, like cornerbacks, edge players, and defensive tackles.

Please make it feel polished and readable, like a small portfolio project someone could open and understand in one pass. If the data is missing, find a public NFL Combine dataset, and look up current docs online if you need to.