Function calculateErrorRate

calculateErrorRate(quality: string, encoding?: QualityEncoding): number
Calculate average error rate for a quality string

Converts each quality score to error probability and computes the mean.
Parameters
- quality: string
  ASCII quality string
- encoding: QualityEncoding = "phred33"
  Quality encoding scheme
Returns number
Average error rate (0-1)
Example
```
const errorRate = calculateErrorRate('IIIIGGGGFFFF', 'phred33');
console.log(`Average error rate: ${(errorRate * 100).toFixed(2)}%`);
```
- Defined in src/operations/core/quality/statistics.ts:168