Massachusetts Advanced Placement Performance by town

AP Test Scores of MA Districts by Year

This stacked bar chart shows AP test participation and score distributions for Massachusetts school districts by year, with each bar representing the total number of tests at each score level. The visualization reveals that overall AP participation has increased over time, while the highest score (5) remains stable and score 2 has grown substantially. The chart uses Vega-Lite via the vega-lite-api wrapper with D3 for CSV loading, and data comes from the Massachusetts DESE AP performance dataset. Each stack segment is colored by score level, with tooltips displaying district names.

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AP Test success rate compared to participation rate by Massachusetts HS

This bubble chart compares Advanced Placement test participation rates and success rates across Massachusetts high schools, with each bubble’s position showing the percentage of students taking at least one AP test versus those scoring 3–5. Bubble color and size encode the school’s 9–12 population. Built with Vega-Lite and d3.v5, it loads CSV data from the DESE repository via `d3.csv` (through the `vl` API) and renders using the default SVG viewer with custom axis styling from `config.js`.

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Largest Participating MA Districts in AP Test (tests taken per district) by year

This stacked bar chart shows the Massachusetts school districts with the highest Advanced Placement test participation, measured by total tests taken per district, across multiple years. Each bar segment represents a distinct district for a given year, with color encoding the test count and tooltips revealing the school name. The visualization is built using Vega-Lite and D3, loading CSV data from a DESE repository via d3.csv, and renders through the vega-lite-api with custom axis and label styling from a config file.

Largest Participating MA Districts in AP Test (tests taken per district) by year

Massachusetts Towns

This example visualizes the towns of Massachusetts as a choropleth-style map using SVG. It loads GeoJSON town boundaries from a remote gist and renders them as filled paths with black strokes via `d3.geoPath`, projected using `d3.geoConicConformal` with parameters fit to the state. The map is drawn into a dynamically created SVG element sized 800×400, with the projection fitted to the data extent. D3 v5 and TopoJSON are used for data loading and path generation, though the code appears incomplete as only the town polygons are shown without additional styling or interactivity.

NNilla

Massachussets

This example visualizes Massachusetts school districts as a choropleth map, with each town randomly assigned one of three colors from a categorical scale. The geographic boundaries are rendered using a conic conformal projection through `d3.geoPath`, while React manages the component structure. Data is loaded from a local TopoJSON file containing town boundaries, and the color mapping is applied via `d3.scaleLinear`. The map is displayed as SVG paths with black strokes highlighting district borders.

11993-INDALKAR

Massachusetts Chrolopleth map

This choropleth map displays the counties of Massachusetts, with each town colored according to its assigned county via a categorical color scale. A conic conformal projection (d3.geoConicConformal) is used to render the state’s boundaries, while d3.geoPath draws the polygons from a TopoJSON source. Town-to-county mappings are loaded from a CSV file, and the color scale is a d3.scaleOrdinal. The visualization is built with React, using d3.v5 for geographic and data processing, and outputs as SVG paths.

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