Definitions
In plain terms
The equivalent form adds one-nth of the difference between current input and prior state.
Technical
The recurrence applies only after the declared seed is ready and must preserve order, state, missing policy, and precision.
Scope
It is not a rolling arithmetic mean after initialization.
Formula
RMA_t = RMA_(t-1) + (x_t - RMA_(t-1))/nRMA_t=RMA_{t-1}+\frac{x_t-RMA_{t-1}}{n}| Symbol | Meaning | Unit |
|---|---|---|
RMA_(t-1) | prior Wilder average | input unit |
x_t | current input | input unit |
n | Wilder period | observations |
Output unit: input unit
Examples
- A governed lesson uses Wilder Recursive Update only with declared inputs, timing, parameters, and edge-case behavior.
Common misconceptions
- It is not a rolling arithmetic mean after initialization.
Concept relationships
Prerequisites
Where this concept is used
Evidence and governance
- Wilder Smoothing in TA-Lib RSI TA-Lib · first party technical publication
Supports: preferred label, short definition, technical definition, formula
Limits: The source is an RSI implementation; applying the recurrence to a standalone RMA requires an explicit input and readiness contract.
- Reviewed by
- fintech-builder-batch-006
- Last reviewed
- 2026-07-27
- Next review
- 2027-07-27
- Record status
- evidence reviewed
This record is evidence-reviewed and readable, but not yet promoted to published — it is served noindex,follow and excluded from the sitemap.