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NY State Map 3 - working-Filtering Dashboard

✓ Published3🌍 Public

Last edited May 14, 2025

Created on May 14, 2025

Forked from Fork of Fork of Fork of NY State Map 2 - working-Dashboard

This dashboard visualizes New York State housing market data from 2022 to 2024 across counties, featuring a choropleth map (d3.geoPath with a Mercator projection) colored by median home price, a bar chart of sales counts, and a line chart (d3.line) of price trends. Using D3.js, users select a year via dropdown to update all charts, and clicking a county on the map filters every chart to that county, highlighting selections in red. The bar chart shows the top 15 counties by sales when unfiltered, and the trend chart overlays lines for the top five counties by median price. Data is loaded from a CSV and processed through a custom `DataLoader` singleton that broadcasts updates to all registered chart listeners.

AI-generated description

New York State Housing Dashboard

This dashboard visualizes housing market data across counties in New York State from 2022 to 2024.

Features

Interactive map showing median home prices by county
Click on counties to filter all charts to show data for that county only
Bar chart showing number of sales by county
Line chart showing price trends over time
Key metrics summary
Top counties by median price listing
Year selection for temporal analysis

Data

The dashboard uses housing market data including number of sales and median home prices for each county in New York State from 2022 to 2024.

Usage

Select a year from the dropdown menu to view data for that year
Click on a county in the map to filter all charts to show data for that county only
Click the "Reset Filter" button to show data for all counties again
Hover over chart elements to see detailed information via tooltips

Technical Implementation

The dashboard is built using:

D3.js for data visualization
TopoJSON for mapping
Pure JavaScript for interactivity

MIT Licensed

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