Class: ScoreLogger

TypeScript SDK reference

weave / ScoreLogger

ScoreLogger manages scoring for a single prediction. Returned from EvaluationLogger.logPrediction().

Example

const pred = await ev.logPrediction(example, output);
await pred.logScore("accuracy", 0.95);
await pred.logScore("relevance", 0.8);
await pred.finish(); // Finalizes the prediction

Table of contents

Constructors

• constructor

Accessors

• isFinishCalled

Methods

• finish
• logScore

Constructors

constructor

• new ScoreLogger(evalLogger): ScoreLogger

Parameters

Name	Type
evalLogger	EvaluationLogger

Returns

ScoreLogger

Defined in

evaluationLogger.ts:319

Accessors

isFinishCalled

• get isFinishCalled(): boolean

Check if finish() has been called. Used by EvaluationLogger to detect unfinished predictions.

Returns

boolean

Defined in

evaluationLogger.ts:349

Methods

finish

▸ finish(): Promise<void>

Finish the scoring process for the prediction. Finalizes the predict_and_score call with accumulated scores. Updates incremental aggregates and frees memory.

Returns

Promise<void>

Defined in

evaluationLogger.ts:451

---

logScore

▸ logScore(scorerName, score): Promise<void>

Log a score for this prediction. Creates a scorer call as a child of predict_and_score.

Parameters

Name	Type	Description
scorerName	string	Name of the scorer (e.g., “accuracy”, “f1_score”)
score	any	The score value

Returns

Promise<void>

Defined in

evaluationLogger.ts:360