For documents to be included in a cluster visualization, what requirement must be met?

For documents to be included in a cluster visualization, they must be linked to a data source in the Relativity Analytics Index. This requirement is crucial because the cluster visualization relies on the underlying analytics models that depend on the indexed data. The Relativity Analytics Index serves as the centralized repository for the necessary information to create meaningful clusters based on the data attributes and relationships among documents.

This linkage ensures that the analytics features can utilize the specific insights derived from the documents, facilitating effective grouping and visualization. Without being connected to the Analytics Index, documents would not contribute to the clustering process, rendering the visualization incomplete or non-functional.

Additionally, while documents can vary in projects and file types, and might be present in any workspace, these factors alone do not guarantee their inclusion in cluster visualizations unless they meet the pivotal criterion of being part of the Analytics Index.