Assignment 8 STAAR Test Results Map in Texas

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Assignment 8 STAAR Test Results Map in Texas

✓ Published2🌍 Public

Last edited Apr 13, 2026

Created on Apr 13, 2026

This choropleth map displays county-level STAAR test performance across Texas, with each county shaded on a sequential orange-red color scale based on its standardized test score percentage. The visualization uses d3.geoPath with a geoAlbersUsa projection to render Texas counties from TopoJSON data, while test scores are joined via a Map from CSV data. Hovering reveals a tooltip with the county FIPS code and score, and a legend with a linear gradient shows the color-to-value mapping. The code relies on d3.v7, topojson, and d3.scaleSequential with d3.interpolateOrRd.

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