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Essays on New Zealand open data, plus product news and worked examples.

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2026-07-11

eolas from R

Install the eolas R package, pull CPI and the OCR, plot with ggplot2, grab an SA2 map. Same catalogue as Python — tibbles and sf, not JSON wrestling.

worked-example r ggplot2 rbnz geospatial
2026-06-17

OCR and CPI in one script

A short worked example: pull NZ CPI and the Official Cash Rate through eolas, join on date, plot. The kind of thing that used to mean two portals and a spreadsheet.

worked-example inflation rbnz oecd python
2026-05-15

The state of open data in New Zealand (2026)

NZGOAL looks great on paper. Whether any one dataset is actually reusable still depends on the agency, the entity type, and whether anyone applied a licence. Here's the map from reading ~60 copyright pages.

open-data licensing nzgoal new-zealand cc-by
2026-05-15

Why I built eolas

I got tired of re-downloading the same Stats NZ tables and fixing scrapers when agencies redesigned their sites. So I built one place for clean NZ official data — with the licence on every table.

announcement new-zealand data-api

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