Interesting question.
There should be a way to do this but I think Analytics metrics aren't available (directly) in Cloud Monitoring.
Here's the list of systems that can provide metrics to Cloud Monitoring out-of-the-box.
While Cloud Monitoring supports more than just Google Cloud Platform, it does not support Google's non-GCP services (directly).
I write 'directly' because you could write a metrics exporter for Analytics to do this for yourself (using custom metrics) and it's very likely that someone has already written one.