Josh Persi
About
Categories
All
(3)
data engineering
(1)
data visualization
(1)
DuckDB
(1)
R
(2)
statistics
(1)
Blog
A Canadian trade database built with DuckDB
DuckDB
data engineering
If you haven’t heard of DuckDB, it’s essentially an open-source database system geared towards analytical, not transactional, workloads. Compared to other database systems…
Dec 28, 2025
7 min
Understanding the probability mass function
R
statistics
I recently started reading Think Stats by Allen B. Downey and am really enjoying it so far. The third chapter is dedicated to Probability Mass Functions (PMFs), which with…
Dec 20, 2025
2 min
Controlling source and author attributions in your
{ggplot2}
graphics
R
data visualization
I have been trying to participate in community data-viz events like TidyTuesday and the 30DayMapChallenge for years now and recently got the gumption to do so. I’ve created…
Nov 22, 2025
2 min
No matching items
