Do controller players die more than keyboard players, or do they just play other levels?

Comparing the death rates of two input devices is misleading when each group spends its time in different places. This entry shows how to put both on the same footing so the difference you see belongs to the device and not to the levels.

Why this works

A group's overall death rate depends on which levels its people happen to play. Weighing every level the same way for both groups removes that accident, so a real difference between devices can be told apart from a difference in what they play.

When not to use it

Useless when the groups play completely different levels or have almost no data per level. Then there is nothing shared to compare, so run a small test where both groups play the same level.

In the full entry

• What to build, step by step
• Starting values and the reason for each
• 3 common mistakes and the fix
• 38 lines of example code with 3 checks that pass
• How your AI shows you that it works

Say this to your AI

Use the Spielerando entry "Do controller players die more than keyboard players, or do they just play other levels?" (read_entry compare-controller-and-keyboard-deaths-fairly) in my game. Build it step by step, and show me how you checked that it works.

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