I took this week's #TidyTuesday as an opportunity to try and brush up on modelling and learn tidymodels.org. I have no great modelling insights to share, but in making this graph, I did learn you can set line-ends to be round in geom_line(). Who knew?!

#DataViz #RStats #ggplot2

testthat 3.3.0 is here! Major updates for #RStats testing include failure messages for easier debugging, 6 new specific expectations, and the SlowReporter to find your bottlenecks.

Heads Up: R 4.1+ is now required, and old mocking functions are removed.

Read the post: tidyverse.org/blog/2025/11...

The Data Science Learning Community is starting a new book club cohort for DuckDB in Action this Wednesday. Come read and learn with us! All are welcome!

DSLC: dslc.io
DuckDB in Action: motherduck.com/duckdb-book-...

#RStats #python #DataScience #OpenSource

A very long time in the making but I'm eager to share I've made a Quarto blog to talk about all the data science stuff I'm learning! First post is about adding data source and author attributions in ggplot2! Feel free to stop by!

joshpersi.github.io/blog

#RStats #Quarto #DataScience #OpenSource

This is my first time joining in on the #TidyTuesday fun. Looking forward to seeing what everyone else is doing with this week's data!

#DataViz #RStats #ggplot2

10 minutes is all we were allowed for day 13 of the #30DayMapChallenge. This took me about 15 minutes, so I'm a little over, but this was a fun way to work under a time constraint and avoid endless tweaking!

#DataViz #RStats #ggplot2

Day 11 is all about minimalism so I made a map with four lines! Perhaps too minimal, but I also couldn't find geographic data on the stations themselves, so maybe it was meant to be 🤷

#30DayMapChallenge #DataViz #RStats #ggplot2

It's day 10 of the #30DayMapChallenge and the prompt is 'air', so I plotted global air temperature!

#DataViz #RStats #ggplot2

Day 8 of the #30DayMapChallenge and I'm plotting a road network of Montréal!

#DataViz #RStats #ggplot2

For the "accessibility" prompt on day 7 of the #30DayMapChallenge, I decided to investigate how accessible the default #ggplot2 colours are to people with different types of colour vision deficiency (and for different numbers of colours used). 🎨

#RStats #DataViz

I learned how little I know about accessibility with day 7 of the #30DayMapChallenge. I tried to use a legible font and added an alt-text, but my colors are low-contrast and I have no idea how far off of best practice I am. If you have resources on making maps accessible, please share them with me!

Day 6 of the #30DayMapChallenge makes things 3D! I took my elevation map from yesterday and made it so with the {rayshader} package.

#DataViz #RStats #ggplot2

The prompt for day 5 of the #30DayMapChallenge was 'Earth' so I tried to plot the elevation of the Kananaskis Valley!

For Day 3 of the #30DayMapChallenge, I mapped the regions and departments of mainland France!

I learned a lot about {ggrepel} but couldn't quite get the labels to be on the outside of each region. Something to work on for next time!

Day 2 of the #30DayMapChallenge is all about lines.

Here's a single line that's near and dear to my heart — the Pacific Crest Trail!

Already a couple days behind! Here's my contribution for the first day of the #30DayMapChallenge.

The HMS Terror and Erebus were abandoned during John Franklin's attempt to find the Northwest Passage.

#DataViz #RStats #ggplot2