Arize Phoenix TS
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    Function toEvaluationResult

    • Converts an unknown value to an EvaluationResult.

      This function provides a flexible way to normalize various return types from evaluator functions into a standardized EvaluationResult format. It handles multiple input types:

      • Numbers: Converted to { score: number }
      • Strings: Converted to { label: string }
      • Objects: Extracts score, label, explanation, and metadata properties if present
      • Other types: Returns an empty EvaluationResult object

      This is particularly useful when creating evaluators from functions that may return different types, ensuring consistent evaluation result formatting.

      Parameters

      • result: unknown

        The value to convert to an EvaluationResult. Can be:

        • A number (converted to score)
        • A string (converted to label)
        • An object with optional score, label, explanation, and/or metadata properties
        • Any other value (returns empty object)

      Returns EvaluationResult

      An EvaluationResult object with extracted properties

      Convert a number to an EvaluationResult:

      const result = toEvaluationResult(0.95);
      // Returns: { score: 0.95 }

      Convert a string to an EvaluationResult:

      const result = toEvaluationResult("correct");
      // Returns: { label: "correct" }

      Convert an object with multiple properties:

      const result = toEvaluationResult({
        score: 0.9,
        label: "high",
        explanation: "High quality output"
      });
      // Returns: { score: 0.9, label: "high", explanation: "High quality output" }

      Convert an object with partial properties:

      const result = toEvaluationResult({ score: 0.8 });
      // Returns: { score: 0.8 }

      Handle null or undefined:

      const result = toEvaluationResult(null);
      // Returns: {}

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