Database Summary

High-level analytics for the current UMDB database release.

This page now combines release-wide analytics with interactive filtering tools, so you can review manuscript-friendly summaries and then immediately drill into year, place, and assay patterns without switching pages. Everything shown here is computed from the same public release used by the explorer.

Release Overview

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Runs By Year

Annual run counts provide a quick view of database growth over time.

Assay Composition

Relative assay counts across the current run collection.

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Top Countries

Run-level counts for resolved country labels in the current database.

Top Cities

Run-level counts for resolved city labels. Useful for identifying concentrated sampling locations.

Top Sequencing Centers

Observed center labels in the current release. This is useful for understanding institutional concentration.

Coverage Notes

Runs and projects measure public visibility Counts reflect what is currently indexed from public metadata and should not be interpreted as a complete census of all urban sequencing efforts.
Geography is metadata-dependent Country and city analytics are only as strong as the source records and the current harmonization logic.
Assay summaries are practical categories The assay chart is useful for database overview and browsing, but downstream analytical suitability should still be checked against original records.

Statistical Tests

These tests quantify whether the current database snapshot looks uniform or strongly concentrated, and whether yearly counts show a monotonic trend.

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Computing test statistics

Preparing distribution and trend tests from the current release.

Summary Tables

These tables provide a compact view of the current database structure and can be exported or cited in supplementary material.

Top BioProjects
Sorted by run count with geographic and assay context.
Category Tables
Quick reference tables for assays, countries, cities, and centers.

Interactive Filters

Focus the analytics on a subset of the current release by year, geography, assay class, and location view.

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Filtered Runs By Year

Line chart of run counts after the current filters are applied.

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Top Locations

Current top country or city buckets under the active filters.

Year by Location Heatmap

Rows show top locations and columns show the most recent observed years in the filtered subset.