30DayChallenge

I love data viz! I made the charts in this portfolio as part of the #30DayChartChallenge in April 2025.

Want to support my chart making?

day 0 challenge

The Our World in Data is a fun place to explore data visualisations. They always make really interesting plots out of all kinds of different data, but they use an in-house…

day 1 fractions

This plot from Our World in Data illustrates the proportion of people who are willing to donate 1% of their income to climate change efforts as a function of people’s…

day 2 slope

This plot from Our World in Data illustrates the amount of time that we spend with others and how that changes with age. The slope of line plotting the amount of time that…

day 3 circular

This plot illustrates changing representation of women in government leadership. It is great that in 2024 fewer than 2% of governments have no women in leadership, but it is…

day 4 big small

This plot illustrates the disproportionate amount of time that women across the world spend doing unpaid care and domestic work relative to men. Only Belgium comes anywhere…

day 5 ranking

These plots from Our World in Data caught my eye this week given all that is going on in the USA with layoffs and funding cuts (R&Dspending ; R&Dresearchers).

day 6 florence

I did not know that Florence Nightingale was also a data visualisation revolutionary, in addition to being a nurse and scientist. She realised that visualisations are…

day 7 outliers

The plots at Our World in Data unpacking changes in sex ratio at birth across the world uncover some interesting outliers. Across the world it is typical for there to be…

day 9_diverging

Our World in Data has a series of plots that report data from the Integrated Values survey, asking people across the world how important they consider a range of life areas…

day 11_stripes

Departing from Our World in Data today to try and make a “show your stripes” temperature plot.

day 13_clusters

Today I am again departing from Our World in Data to play around with something I know nothing about: k-means clustering. This animation by Allison Horst from the tidymodels …

day 16_negative

Exploring OurWorldinData this morning looking for plots that might fit the negative theme for today and this article caught my eye.

day 17_birds

It is Day 17 and the theme is birds. I am interested in the results of the Forest and Bird New Zealand Bird of the Year competition over the past few years.

day 19_smooth

Egg prices in the USA are high right now, mostly due to supply issues caused by bird flu outbreaks. I was interested in how prices compare to egg prices in NZ, which have…

day 22 stars

Day 22 and the prompt is stars. Here I am looking at the age differences between love interests in Hollywood movies. Data found on Kaggle and downloaded from https://hollywoo…

day 24 WHO

The prompt for Day 24 is the World Health Organisation. I spent some time exploring the WHO website for a chart that uses a geom that I hadn’t tried before and came up with…

day 25 measles risk

For the Day 25 prompt risk, I am going to try my hand at maps and reproduce the CDC plots relating to measles vaccination and cases in the US.

day 27 noise

The Day 27 prompt is noise and I am interested in finding some data illustrating how noise pollution might impact our health. It was a bit hard to find interesting plots…

day 28 inclusion

Stats NZ recently released an update to their Wellbeing 2023 dataset that included variables related to digital inclusion. I downloaded the raw dataset from the site and used …

day 30 finale

The last day of the #30DayChartChallenge- woot! As predicted I did not manage to make a chart every day; the latter half of the challenge clashed with school holidays and a…