D08-F01-A12 · LEVEL 2 GUIDED LAB · SYNTHETIC DATA

ATR Support and Resistance

How far are volatility-scaled reference levels from a declared center? Walk the evidence clock one stage at a time. This lab teaches the publication contract; it does not simulate returns, platform parity, or trade performance.

Selected expression

support=center-k*ATR_n; resistance=center+k*ATR_n

Availability rule

A level derived from a prior session becomes available only after that source session is final; a confirmed pivot becomes available only after its declared confirmation lag.

calculated · step 1 of 7

Verified synthetic fixture

This lab is paired with datasets/implementation-fixtures.json: 96 deterministic, oldest-to-newest observations spanning oscillating, rising, and moderating regimes. It is teaching data—not market history or predictive evidence.

Canonical latest output (D08-F01-A12)
{
  "center": 104.20055051999998,
  "support": 97.75337766966595,
  "resistance": 110.647723370334
}

Executable checks cover this result, flat/zero-volume boundaries, invalid timestamps, and prefix causality in both language entry points.