Interactive Tool

Decision Assistant

Don’t guess — get a reasoned recommendation. Pick the decision you’re facing, answer a couple of questions about your data and goal, and the assistant points you to the right method and the chapter that explains why.

I have this data and this goal. What should I do next?

This turns the static decision trees in the handbook into a guided tool. Every recommendation links back to the full explanation, the trade-offs, and the leak-safe code.

Missing valuesOutliersEncodingScalingMetricsModel choiceStat tests