A+ guided laboratory · 1,440 synthetic observations

Average True Range (ATR): change the contract, not just the chart

What directionless range scale does recent trading imply? Choose a scenario, predict the next state, change a parameter when available, and prove the output from its components.

Observed price and diagnostic state

Average True Range (ATR) causal chartPrice-level and separately scaled diagnostic panels through the selected row; future observations are hidden.Price-level panelDiagnostic panel · separate scale

18-row calculation audit

Runtime outputs use the same frozen formulas as the reference implementations. Scenario defaults must match the stored fixture.