ILINet Flu Surveillance Data Interactive Visualization
This interactive visualization presents CDC ILINet flu surveillance data across four coordinated panels: a line chart of weekly trends by year, a choropleth map of state-level averages, a bar chart of top states, and a multi-line chart of state trends. Users can hover and click to select years and states across panels using shared color scales. Built with React and D3 v5, it leverages `d3.csv`, `d3.geoAlbersUsa` with `d3.geoPath` for the map, `d3.scaleBand` and `d3.scaleLinear` for charts, and `d3.curveCardinal` for smoothing.
AI-generated descriptionThis project use D3.js and React to display an interactive four-panel view for visualization. The Data used is the ILINet Flu Surveillance Dataset from ILINet Flu Surveillance Report. The original data is downloaded from the webpage: CDC FluView Interactive.
Four Panel View The visualization is composed of 4 panels.
- The first line plot displays annual average patient visits percentage or other values from the dataset on weekly bases. It demonstrates the pattern for different years.
- The second plot is a choropleths map shows the geographical distribution over the US including Alaska and Hawaii.
- The third plot is a bar chart shows the top 10 or N states. It gives the user more quantitative information and a list of top states by name.
- The fourth plot to show the yearly trending pattern of these states using a colorful line chart, using the same color scheme used by bar chart for different states.