Function readMetric

readMetric(holdoutMetricsJson: string, metric: string): number
Read a single metric value off a model's HoldoutMetrics JSON. Returns null when the blob is absent/unparseable or the metric is missing/non-numeric.
Parameters
- holdoutMetricsJson: string
  the model's HoldoutMetrics column
- metric: string
  the metric name to read
Returns number
- Defined in AI/PredictiveStudio/Engine/src/maintenance/metrics.ts:76