{"record":{"id":"6a06a448f45097b2","repo":"affaan-m/ECC","slug":"scores-must-be-finite-and-between-0-and-1","errorCode":null,"errorMessage":"scores must be finite and between 0 and 1","messagePattern":"scores must be finite and between 0 and 1","errorType":"validation","errorClass":"anyhow::Error","httpStatus":null,"severity":"error","filePath":"ecc2/src/harness_eval.rs","lineNumber":539,"sourceCode":"        if samples.is_empty() {\n            bail!(\"samples cannot be empty\");\n        }\n        if samples\n            .iter()\n            .map(|sample| sample.seed)\n            .collect::<BTreeSet<_>>()\n            .len()\n            != samples.len()\n        {\n            bail!(\"sample seeds must be unique\");\n        }\n        if samples.iter().any(|s| {\n            !s.candidate_score.is_finite()\n                || !s.baseline_score.is_finite()\n                || !(0.0..=1.0).contains(&s.candidate_score)\n                || !(0.0..=1.0).contains(&s.baseline_score)\n        }) {\n            bail!(\"scores must be finite and between 0 and 1\");\n        }\n        let count = samples.len();\n        let candidate_mean = samples.iter().map(|s| s.candidate_score).sum::<f64>() / count as f64;\n        let baseline_mean = samples.iter().map(|s| s.baseline_score).sum::<f64>() / count as f64;\n        let mean_delta = candidate_mean - baseline_mean;\n        let win_rate = samples\n            .iter()\n            .filter(|s| s.candidate_score > s.baseline_score)\n            .count() as f64\n            / count as f64;\n        let mut failures = Vec::new();\n        if count < self.min_samples {\n            failures.push(format!(\n                \"minimum sample count is {}, got {count}\",\n                self.min_samples\n            ));\n        }\n        if mean_delta < self.min_mean_delta {","sourceCodeStart":521,"sourceCodeEnd":557,"githubUrl":"https://github.com/affaan-m/ECC/blob/06c5e118c4d3e6c3b7f9445f973a2194c82de193/ecc2/src/harness_eval.rs#L521-L557","documentation":"compare validates every sample's candidate_score and baseline_score are finite and within [0,1]. It fires when any paired sample contains NaN, infinity, or an out-of-range score, preventing corrupt measurements from driving promotion decisions.","triggerScenarios":"Thrown at ecc2/src/harness_eval.rs:539 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Ensure every score is a finite number within [0, 1].","Normalize or clamp scores at the producer and guard against NaN/Infinity."],"exampleFix":null,"handlingStrategy":"validation","validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"06c5e118c4d3e6c3b7f9445f973a2194c82de193","analyzedAt":"2026-08-18T11:27:13.915Z","contentChangedAt":null,"schemaVersion":2},"datasetVersion":"2026-09-14T00:17:10.932Z"}