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Never average rates or deciles.", "alternativesRejected": [ "Best-fit centroid lookup omits split-child areas and is not a count redistribution.", "Population-proportional claimant allocation requires independent validation; assuming equal rate within an old area would manufacture fine-scale precision.", "Current 2026 claimant observations cannot replace 2021 historical values." ] }, "periodCompleteness": { "2020": { "months": 12, "sourceLSOAs": 34753, "completeClaimantAreas": 34753, "completePopulationAreas": 35672, "nationalAnnualMeanClaimants16to64": 1979597.5, "nationalPopulation16to64": 37362491.0 }, "2021": { "months": 12, "sourceLSOAs": 34753, "completeClaimantAreas": 34753, "completePopulationAreas": 35672, "nationalAnnualMeanClaimants16to64": 2022742.5, "nationalPopulation16to64": 37510994.0 } }, "ageUniverse": { "claimantAgeCodes": [ 2, 3, 17, 18, 19 ], "claimantAges": [ "16-24", "25-49", "50-54", "55-59", "60-64" ], "populationAgeCode": 203, "excluded": [ "65+", "age unknown" ] }, "safeguards": [ "No collision outcomes read.", "No missing count converted to zero.", "Each annual mean requires twelve complete monthly values.", "Both year denominators use one rebased population edition.", "Negative claimant changes preserved.", "No national deciles calculated by F3." ], "historicalAsOf2022Eligible": false, "claimsValidation": false, "collisionValidation": false, "reproducibility": [ "python scripts/acquire-ew-f3.py", "python scripts/build-ew-f3.py", "python tests/ew-f3.test.py" ], "outputs": [ { "file": "inputs/f3-features.csv.gz", "bytes": 854545, "sha256": "338a19b39317cb44def2482e0a24964efb851b92b5fe87d4212989e174d3735a" }, { "file": "inputs/f3-diagnostics.csv.gz", "bytes": 1161806, "sha256": "173f14bffc7384f05ebe30efb71913b727108a5bb881c453bb9b77f8e63be57d" } ] }