Skip to content

Instantly share code, notes, and snippets.

Show Gist options
  • Save gabbyprecious/5134f895c2649f0d9e641798973c613b to your computer and use it in GitHub Desktop.
Save gabbyprecious/5134f895c2649f0d9e641798973c613b to your computer and use it in GitHub Desktop.
Data Wrangling Exercise - Natural Gas Prices

Challenge 1

Your task: write a script to get a nice CSV file of natural gas prices.

Please publish your results in a git repo or a gist. Please include both script and your resulting data -- so the CSV files should be stored in the repo too!

More detail:

  • Prices should be Henry Hub gas prices. Use EIA data here: http://www.eia.gov/dnav/ng/hist/rngwhhdm.htm
    • Hint: you can get the data from any data source on the page ...
  • Main data wanted is daily prices.
    • Bonus points for doing other granularities (e.g. month) - do them in separate CSV files with sensible naming
  • Resulting CSV should have two columns: Date and Price. You may need to normalize the data to get this and/or work out dates. For months the Date should be the first date of the month.
  • We want a script for this and we want this script to be in python (we'd allow node or bash or go script at a push but prefer python)
    • Why a script? Ans: We'll want to run this again and again as they release new data. You could copy and paste data into Excel/Google Docs by hand, and then export the CSV. But that would be tedious, time consuming and error prone to do month after month
    • Please use simple python libraries wherever possible rather than use a framework

Bonus items (optional - extra kudos if you do either of these!):

  • Make your repository into a Tabular Data Package - here's a guide
  • Do a line graph visualization of the data in HTML + Javascript using e.g. vega or direct in D3
    • Deploy your repo somewhere so this visualization is visitable online e.g. via github or gitlab pages
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment