Nicola Rennie<p>I finally got around to writing up a ✨ chart makeover ✨ blog post based on my (deliberately) bad chart created for the <a href="https://fosstodon.org/tags/30DayChartChallenge" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>30DayChartChallenge</span></a>! 📊</p><p>Link: <a href="https://nrennie.rbind.io/blog/chart-makeover/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">nrennie.rbind.io/blog/chart-ma</span><span class="invisible">keover/</span></a></p><p><a href="https://fosstodon.org/tags/RStats" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>RStats</span></a> <a href="https://fosstodon.org/tags/DataViz" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DataViz</span></a> <a href="https://fosstodon.org/tags/ggplot2" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ggplot2</span></a></p>
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#30DayChartChallenge
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Di<p>You can now see all my recent charts and their stories in 1 place: <a href="https://didoesdigital.com/30-day-chart-challenge-2025/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">didoesdigital.com/30-day-chart</span><span class="invisible">-challenge-2025/</span></a></p><p><a href="https://bne.social/tags/30DayChartChallenge" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>30DayChartChallenge</span></a></p>
Di<p>One mangrove tree can remove 0.3 tonnes of carbon from the atmosphere over its growth life. Mangrove forests can hold nearly 400 tonnes of CO2 per hectare in their living biomass and in the top metre of soil.</p><p>They're also cost effective to grow and maintain, so long as our communities continue to take care of them.</p><p><a href="https://bne.social/tags/30DayChartChallenge" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>30DayChartChallenge</span></a></p>
Nicola Rennie<p>It's the last day of the <a href="https://fosstodon.org/tags/30DayChartChallenge" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>30DayChartChallenge</span></a>, and the final prompt is "National Geographic Theme" so here's my first and only map created for the challenge!</p><p>📊 Made with <a href="https://fosstodon.org/tags/RStats" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>RStats</span></a><br>🎨 Colours inspired by National Geographic logo<br>📦 {ggpattern} to use striped areas for missing data</p><p><a href="https://fosstodon.org/tags/DataViz" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DataViz</span></a> <a href="https://fosstodon.org/tags/Day30" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Day30</span></a> <a href="https://fosstodon.org/tags/ggplot2" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ggplot2</span></a></p>
Di<p>The Parkes Observatory is national heritage listed in Australia. Apparently "Australia was an international leader in the ground-breaking field of radio astronomy research in the post-World War II period".</p><p>It may have even helped CSIRO invent wifi!</p><p><a href="https://bne.social/tags/30DayChartChallenge" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>30DayChartChallenge</span></a> <a href="https://bne.social/tags/Australia" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Australia</span></a></p>
Di<p>I'm delighted to learn that the Queensland government measures the height and direction of waves along the coast.</p><p>They use it for things like planning construction, investigating erosion, emergency services during cyclone season, global wave monitoring and so on.</p><p>You can use it to plan surfing, fishing, and the like!</p><p><a href="https://www.qld.gov.au/waves" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="">qld.gov.au/waves</span><span class="invisible"></span></a></p><p><a href="https://bne.social/tags/30DayChartChallenge" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>30DayChartChallenge</span></a> <a href="https://bne.social/tags/Queensland" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Queensland</span></a> <a href="https://bne.social/tags/waves" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>waves</span></a></p>
Nicola Rennie<p>Catching up on Day 24 of the <a href="https://fosstodon.org/tags/30DayChartChallenge" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>30DayChartChallenge</span></a> where the prompt is using data from the World Health Organization 🧑⚕️ </p><p>📊 Tried an experimental way to visualise two variables, where lower values are better for both<br>✅ Area shrinking towards zero indicates improvement<br>🤔 Think this would work better if there's a more natural scaling between two variables</p><p><a href="https://fosstodon.org/tags/DataViz" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DataViz</span></a> <a href="https://fosstodon.org/tags/D3" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>D3</span></a> <a href="https://fosstodon.org/tags/Day24" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Day24</span></a></p>
Di<p>Apparently grey/charcoal/black shades of cars are less likely to be seen on the road and thus involved in more crashes.</p><p><a href="https://bne.social/tags/30DayChartChallenge" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>30DayChartChallenge</span></a></p>
Di<p>To help stamp out trachoma, you can donate to Fred Hollows Foundation to treat it directly or donate to a charity that helps communities emerge from poverty and break the cycle of infection and re-infection.</p><p><a href="https://bne.social/tags/30DayChartChallenge" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>30DayChartChallenge</span></a></p>
Nicola Rennie<p>For Day 23 of the <a href="https://fosstodon.org/tags/30DayChartChallenge" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>30DayChartChallenge</span></a>, the prompt is "Log scale" 📊 </p><p>(Technically, this isn't actually a log scale but I wanted to play around with the idea of giving the more recent, more densely located data points more space)</p><p><a href="https://fosstodon.org/tags/DataViz" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DataViz</span></a> <a href="https://fosstodon.org/tags/RStats" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>RStats</span></a> <a href="https://fosstodon.org/tags/Day23" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Day23</span></a></p>
Nicola Rennie<p>I'm almost back on track with the <a href="https://fosstodon.org/tags/30DayChartChallenge" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>30DayChartChallenge</span></a> with another trio of plots - this time all made from scratch in D3! </p><p>I learned how to:<br>📊 Make scatter plots, line charts, and area charts<br>💡 Highlight and annotate specific data points<br>📈 Fit Loess curves in D3</p><p><a href="https://fosstodon.org/tags/DataViz" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DataViz</span></a> <a href="https://fosstodon.org/tags/Day18" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Day18</span></a> <a href="https://fosstodon.org/tags/Day19" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Day19</span></a> <a href="https://fosstodon.org/tags/Day21" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Day21</span></a> <a href="https://fosstodon.org/tags/D3" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>D3</span></a></p>
Di<p>Down under, you can use the Southern Cross to tell time and direction.</p><p>Aboriginal Australians are among the world's first astronomers. The southern cross forms part of the Emu in the Sky, a dark constellation, which has featured in storytelling for thousands of years.</p><p><a href="https://bne.social/tags/30DayChartChallenge" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>30DayChartChallenge</span></a> <a href="https://bne.social/tags/stars" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>stars</span></a> <a href="https://bne.social/tags/constellations" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>constellations</span></a></p>
Nicola Rennie<p>For Day 20 of the <a href="https://fosstodon.org/tags/30DayChartChallenge" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>30DayChartChallenge</span></a> 📊 and the prompt of "Urbanization", I used <a href="https://fosstodon.org/tags/Python" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Python</span></a> to make a very abstract plot in the style of a city skyline silhouette! 🐍</p><p>(Still using the income inequality data via Our World in Data)</p><p><a href="https://fosstodon.org/tags/DataViz" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DataViz</span></a> <a href="https://fosstodon.org/tags/Day20" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Day20</span></a></p>
Sam Van Horne, Ph.D.<p>For day 2 of <a href="https://vis.social/tags/30DayChartChallenge" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>30DayChartChallenge</span></a>, I made an area chart in <a href="https://vis.social/tags/rstats" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>rstats</span></a> to show the increase in automobile crashes in Delaware (and the proportion in which alcohol was involved). It might be a stretch to call it a slope chart. :) <a href="https://vis.social/tags/dataviz" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>dataviz</span></a> </p><p>Code: <a href="https://github.com/bardolater/30DayChartChallenge/blob/main/2025/02_Slope.r" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">github.com/bardolater/30DayCha</span><span class="invisible">rtChallenge/blob/main/2025/02_Slope.r</span></a></p>
Sam Van Horne, Ph.D.<p>For day 1 of <a href="https://vis.social/tags/30DayChartChallenge" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>30DayChartChallenge</span></a>, I made a quick waffle chart in <a href="https://vis.social/tags/rstats" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>rstats</span></a> from open data about automobile crashes in Delaware. As a <a href="https://vis.social/tags/BikeTooter" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>BikeTooter</span></a> who commutes to work by <a href="https://vis.social/tags/bike" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>bike</span></a>, I'm keenly interested in road safety. </p><p>Code: <a href="https://github.com/bardolater/30DayChartChallenge/blob/main/2025/01_Fractions.r" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">github.com/bardolater/30DayCha</span><span class="invisible">rtChallenge/blob/main/2025/01_Fractions.r</span></a></p>
Di<p>The meaning of "mateship" can be positive or a bit spicy and has changed over time. Have a read of the Wikipedia page: <a href="https://en.wikipedia.org/wiki/Mateship" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">en.wikipedia.org/wiki/Mateship</span><span class="invisible"></span></a></p><p>As an aside, I enjoyed the section on "mate":</p><p>"In Australia, a 'mate' is more than just a friend and is a term that implies a sense of shared experience, mutual respect and unconditional assistance.</p><p>"The term includes use in ways other than friendship like getting someone's attention, replacing a name, questioning a statement, letting one know to calm down and referring to someone in a rash or harsh way."</p><p>Mate.</p><p><a href="https://bne.social/tags/30DayChartChallenge" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>30DayChartChallenge</span></a></p>
Di<p>Numbats used to be all across mainland Australia but by the '70s there were only about 300 individuals in Western Australia. We've done well to control predators and improve fire management but they still need our help!</p><p><a href="https://www.numbat.org.au/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="">numbat.org.au/</span><span class="invisible"></span></a></p><p><a href="https://bne.social/tags/30DayChartChallenge" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>30DayChartChallenge</span></a> <a href="https://bne.social/tags/numbats" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>numbats</span></a> <a href="https://bne.social/tags/Australia" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Australia</span></a></p>
Nicola Rennie<p>It's Day 11 of the <a href="https://fosstodon.org/tags/30DayChartChallenge" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>30DayChartChallenge</span></a>, and the prompt is "Stripes" 📊 </p><p>📈 Showing % of world income received by richest 1% from 1980-2023 (🔴 = higher inequality)<br>🌡️ Inspired by the iconic climate change warming stripes chart<br>🐍 Made with Plotnine in Python</p><p><a href="https://fosstodon.org/tags/Day11" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Day11</span></a> <a href="https://fosstodon.org/tags/DataViz" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DataViz</span></a> <a href="https://fosstodon.org/tags/Python" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Python</span></a></p>
Nicola Rennie<p>It's Day 10 of the <a href="https://fosstodon.org/tags/30DayChartChallenge" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>30DayChartChallenge</span></a>, and the prompt is "Multi-modal" 📊 </p><p>📈 Showing distribution of % of income received by richest 1% from 1980-2023<br>🔴 = higher inequality <br>💻 Made with {ggridges} in <a href="https://fosstodon.org/tags/RStats" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>RStats</span></a></p><p><a href="https://fosstodon.org/tags/Day10" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Day10</span></a> <a href="https://fosstodon.org/tags/DataViz" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DataViz</span></a></p>
Di<p>Did you know word order in Auslan (Australian Sign Language) is not the same as in English? It's a whole different "natural language"!</p><p>Apparently many Australian Aboriginal cultures have also had manually coded language, as signed counterparts of their oral languages!</p><p>Indigenous sign language is not only used by people with hearing loss. Many Indigenous languages are multi-modal!</p><p>There's the Warlpiri language, spoken by about 3,000 of the Warlpiri people in the Northern Territory, and there's Warlpiri Sign Language AKA Rdaka-rdaka ("hand signs") with about 1,500 signs.</p><p>And did you know there are one-handed and two-handed fingerspelling alphabets used in different English-speaking countries?</p><p>Auslan is a visual language using hand shape, orientation, location, movement, and expression! There's about 38 major hand shapes and 25ish variants.</p><p>I thoroughly enjoyed learning more about Auslan today.</p><p><a href="https://bne.social/tags/30DayChartChallenge" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>30DayChartChallenge</span></a> <a href="https://bne.social/tags/auslan" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>auslan</span></a> <a href="https://bne.social/tags/steno" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>steno</span></a></p>
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