By Islam BarakaDefinitions
In plain terms
The intercept anchors the model coordinate system even if no pivot exists at index zero.
Technical
intercept_log = a* in z_hat(t)=a*+b*t; exponentiating gives the line's price at index zero under the model.
Scope
An intercept is a coordinate parameter, not an observed support or resistance value.
Examples
- A reviewer computes Trendline Intercept on a small deterministic fixture and checks timing, units, and boundary behavior before publication.
Common misconceptions
- An intercept is a coordinate parameter, not an observed support or resistance value.
Concept relationships
Where this concept is used
Tutorials planned
These catalogued topics use this concept, but their complete build has not shipped yet.
- D08-F01-A04 Important
Evidence and governance
- Linear Least Squares Regression NIST/SEMATECH · official standard
Supports: preferred label, short definition, technical definition, formula
Limits: A fitted line remains descriptive and is not evidence of a future price path.
- sklearn.linear_model.RANSACRegressor scikit-learn · first party technical publication
Supports: preferred label, short definition, technical definition, formula
Limits: This package enumerates every two-point hypothesis for small pivot sets instead of using random sampling.
- numpy.log NumPy · first party technical publication
Supports: preferred label, short definition, technical definition, formula
Limits: A log transform requires positive finite prices and does not by itself define a financial level.
- numpy.polyfit NumPy · first party technical publication
Supports: preferred label, short definition, technical definition, formula
Limits: The glossary freezes its own log-space OLS contract, diagnostics, and tie rules.
- Reviewed by
- fintech-builder-batch-011
- Last reviewed
- 2026-08-09
- Next review
- 2027-08-09
- 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.