public void setFrequency(String frequency) {
        this.frequency = frequency;
    }
<p>
The update to the frequency value that subscribers receive notifications.
</p>

@param frequency
       The update to the frequency value that subscribers receive notifications.
@see AnomalySubscriptionFrequency
aws-java-sdk-costexplorer/src/main/java/com/amazonaws/services/costexplorer/model/UpdateAnomalySubscriptionRequest.java