> ## Documentation Index > Fetch the complete documentation index at: https://offthepace.mintlify.site/llms.txt > Use this file to discover all available pages before exploring further. # fct_lap_residuals > Lap-grain analytics table. Part of the [Marts](/transform/families/marts) family. > For the conceptual foundation, read [Fct Lap Residuals](/decomposition/seven-term-identity). Lap-grain analytics table. One row per valid race lap. Exposes the full residual decomposition from int\_lap\_residual\_decomposed plus anomaly flags from int\_lap\_anomaly\_flags. Use ml\_eligible = TRUE to filter to training-quality laps. For ML model inputs, prefer the split marts: * fct\_driver\_skill\_features race-grain skill aggregates * fct\_cliff\_prediction\_features lap-grain with next\_lap\_degradation\_jump\_s target ## Lineage ```mermaid theme={null} flowchart LR dim_constructors --> fct_lap_residuals dim_drivers --> fct_lap_residuals int_lap_residual_decomposed --> fct_lap_residuals style fct_lap_residuals fill:#e40404,stroke:#e40404,color:#fff ``` ## Overview | Property | Value | | ----------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------- | | Layer | `marts` | | Family | [Marts](/transform/families/marts) | | Contract enforced | No | | Upstream | [`int_lap_residual_decomposed`](../int/int_lap_residual_decomposed), [`dim_drivers`](../dim/dim_drivers), [`dim_constructors`](../dim/dim_constructors) | **19 tests** [guard](/transform/ci/overview) this model - 18 generic, 1 singular. ## Columns | Column | Type | Nullable | Tests | Description | | ------------------------- | ---- | -------- | ---------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | `lap_id` | | Yes | [`not_null`](/transform/ci/structural), [`unique`](/transform/ci/structural) | Surrogate PK, FK to stg\_laps. | | `race_year` | | Yes | [`not_null`](/transform/ci/structural) | Season year. | | `race_id` | | Yes | [`not_null`](/transform/ci/structural) | Race identifier. | | `driver_id` | | Yes | [`not_null`](/transform/ci/structural) | Driver identifier. | | `constructor_id` | | Yes | [`not_null`](/transform/ci/structural) | Constructor identifier. | | `lap_number` | | Yes | [`not_null`](/transform/ci/structural) | Lap number within the race. | | `lap_time_s` | | Yes | [`not_null`](/transform/ci/structural) | Raw lap time in seconds. | | `compound` | | Yes | [`accepted_values`](/transform/ci/range-and-domain) | Tyre compound on this lap. | | `fuel_component_s` | | Yes | [`not_null`](/transform/ci/structural) | Fuel-burnoff weight penalty component. | | `compound_component_s` | | Yes | [`not_null`](/transform/ci/structural) | Tyre-compound degradation component. NULL when compound itself is NULL — a handful of laps (5, all 2018) have no tyre-compound tag in bronze; known source-data gap, not a pipeline bug. | | `rubber_component_s` | | Yes | [`not_null`](/transform/ci/structural) | Track-rubber evolution component. | | `ambient_component_s` | | Yes | [`not_null`](/transform/ci/structural) | Ambient/weather component. | | `constructor_component_s` | | Yes | [`not_null`](/transform/ci/structural) | Constructor structural pace component. | | `dirty_air_tax_s` | | Yes | [`not_null`](/transform/ci/structural) | Per-lap dirty-air slowdown component. | | `driver_skill_residual_s` | | Yes | [`not_null`](/transform/ci/structural) | Residual after all physics/car/strategy components (driver skill). | | `ml_eligible` | | Yes | [`not_null`](/transform/ci/structural) | TRUE when the lap is training-quality for ML inputs. | | `correction_weight` | | Yes | [`not_null`](/transform/ci/structural) | IPW/cleanliness weight for the lap. |