What is the average intraday high-low distance over the selected daily window? 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
ADR_n=mean(H_i-L_i,n)
Availability rule
An output at t may use only finite, basis-consistent observations available through t; chart alignment never moves the information clock backward.
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 (D07-F06-A07)
{
"value": 3.0896585750000014
}
Executable checks cover this result, flat/zero-volume boundaries, invalid timestamps, and prefix causality in both language entry points.