Federal Reserve Economic Data + D3

Visualizations of Federal Reserve Economic Data using the D3.js visualization library. Specifically, a look into the tags API. I investigate with 2 types of D3 visualizations:

1. A force-directed graph layout that connects tags together which are related according to the api.
2. A bubble chart that gives a sense of how popular certain tags are among data sets.

Acquiring the JSON data files

The web app doesn't make live API calls to avoid complexity over securing the API key. Instead, I store a copy of the data locally.

• tags.json is populated with data from http://api.stlouisfed.org/fred/tags?api_key=abcdefghijklmnopqrstuvwxyz123456&file_type=json
• tags_graph.json is a processed version of tags.json. It runs with Node.js. To create tags_graph.json, run the following inside the directory:
  1. npm install
  2. node preprocess.js