What is this?
Analysis and visualization of prison population data from the Illinois Department of Corrections.
Data source:
https://www2.illinois.gov/idoc/reportsandstatistics/Pages/Prison-Population-Data-Sets.aspx.
Repository organization
/scripts
Ruby scripts used in data transformation and analysis.
- csv_idoc_to_json.rb -- Convert to JSON. Adapted from: https://gist.github.com/enriclluelles/1423950.
- descriptive_stats.rb -- Print descriptive stats about 9-2019-prison-data-trimmed.json.
Reproduce the final JSON file
- Download "September 2019 Prison Stock.xls" from IDOC website: https://www2.illinois.gov/idoc/reportsandstatistics/Pages/Prison-Population-Data-Sets.aspx.
- Export to CSV format; save as
9-2019-prison-data-trimmed.csv. - Manually trim out the first five rows (comments before the header row) and the last 11 rows (footnotes).
- Run the following from your command line:
ruby scripts/csv_idoc_to_json.rb data/9-2019-prison-data-trimmed.csv data/9-2019-prison-data-trimmed.json pretty
The above script will:
- Transform to JSON
- Drop columns we don't need for data visualization
See descriptive stats about the JSON data:
ruby scripts/descriptive_stats.rb