Interactive Data Explorer
The website features a Neo4j database containing over 500,000 records from the Purchase Card Transactions dataset (Open Data DC, City of Washington, DC). Users can query the data freely and visualize results as an interactive tree graph. Clicking on a node dynamically generates a time series, histogram, and key statistical metrics in real-time. Additionally, users can download the corresponding data in JSON and CSV formats.
If the selection returns more data (see the table on the right - number of records after executing the query), the limit in the selection should be increased to retrieve all records.
The area of each node reflects the amount.
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