Use nicer visuals in Analytics

[KarenJewell]

Potentially replace static chart images with D3.js?

Pages/charts to do:

• [x] # of datasets by org
• [x] # of data files by org
• [x] Scorecard
• [x] Data portal sources (e.g. CKAN, ArcGIS, manual etc.)
• [ ] File types/file types by org/average file types per dataset
• [ ] File size distribution/average data files per dataset per org
• [ ] Top 10 most popular tags/Top 10 most shared tags (after data cleaning)
• [x] Licence distribution (after data cleaning)

[KarenJewell]

From @JackGilmore on Slack 6 Nov:

Using the Liquid templating language that Jekyll uses I can generate JSON (https://github.com/JackGilmore/jkan/blob/gh-pages/graphdata.json) from the underlying site data that can then be passed to JavaScript to make some pretty graphs (https://jackgilmore.github.io/jkan/graphtest/) Might be handy for if we want to have a live stats page with some basics like: Datasets by org graph and/or org datasets leaderboard Graph of orgs with/without an open data portal _ Breakdown of resource types available (JSON/CSV/PDF etc.)

[JackGilmore]

Data portal sources report added in https://github.com/OpenDataScotland/jkan/commit/f9a235a21101f5da41fb6f0c399dd20cd5b1482a