public PIIDetection withThresholdFraction(Double thresholdFraction) {
        setThresholdFraction(thresholdFraction);
        return this;
    }
<p>
Indicates the fraction of the data that must be met in order for a column to be identified as PII data.
</p>

@param thresholdFraction
       Indicates the fraction of the data that must be met in order for a column to be identified as PII data.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-glue/src/main/java/com/amazonaws/services/glue/model/PIIDetection.java