Technical Series: Streamlining GeoJSON Integration into Sigma

Handling GeoJSON files for use in Sigma can be significantly streamlined by following a straightforward process that eliminates the need for complex coding. Start by selecting a quality GeoJSON file, such as those available from the University of Texas Libraries GeoData, and upload it to the user-friendly MapShaper tool, which allows for file preview and optional data simplification to optimize file size. After exporting the optimized GeoJSON file, change its extension to .csv and upload it to Sigma using its CSV upload feature with the "tab" delimiter. In Sigma, convert the column to JSON, extract the Geometry Column, and convert it to a Geography type for plotting. This method simplifies the integration of geo-mapping into data analysis, enhancing the visual and intuitive aspects of geo-analytics in Sigma, and is particularly useful for tasks like tracking regional sales or analyzing demographic trends.