Recreating the Makie logo with Luxor.jl
This is the logo of Makie.jl:
jkrumbiegel.com
Programming, data visualization and data science with Julia.
Latest posts
RAW photo library automation with Julia
In this post I describe how I use Julia to automatically synchronize my Capture One raw photo catalog to my iCloud via Apple Photos, so that I can view and share the jpegs from my iPhone at any time with the same interface as my iPhone photos. The official AppleScript interfaces are not powerful enough to do what I need. My solution is accessing the SQLite databases of Capture One and Apple Photos…
Extracting data from Harry Potter with GPT-3
In this blog post, I’ll show how I used Julia and a GPT-3 model (via an online API) in an attempt to analyze the monetary value of items in the Harry Potter novels, and what I learned in the process.
Pkg.jl and Julia Environments for Beginners
When you start using Julia, you will quickly come in contact with Pkg.jl, its package manager. It’s reasonably easy to install a few packages and start using Julia. But from reading questions on Slack and Discourse, many users only start understanding relatively late what commands like instantiate are doing. This post should teach you how you can step beyond a messy global environment and towards…
Composing macros inside-out with Julia
Macros in Julia, denoted by the @ prefix, are used to transform code before it is executed. They are often used to reduce boilerplate or implement domain specific languages (DSLs).
Multi-columns, shortcut strings and subset transformations in DataFrameMacros.jl v0.2
DataFrameMacros.jl is a Julia package that makes it easier to manipulate DataFrames, by rewriting code into source-function-sink expressions that conform to DataFrames.jl’s more verbose mini-language. In version v0.2 (and v0.2.1) I have added a couple new features that are powerful, but not immediately obvious. This post takes a closer look at the new functionality.
Analyzing international football results with Julia
As the UEFA Euro 202(0/1) is going on, I was inspired to check out a dataset of all international men’s football matches since the dawn of time. This post goes over some questions I had for the dataset, and how I approached the analysis with my recent macro package DataFrameMacros.jl. Plotting is done with AlgebraOfGraphics.jl, which is a super useful grammar-of-graphics style package building on…
Julia macros for beginners
Macros are a powerful and interesting feature of the Julia programming language, but they can also be confusing. Users coming from Python, Matlab or R have not come in contact with similar constructs before, and they require a different way of thinking about code. This article is supposed to be a simple introduction, after which you might judge better when use of macros is appropriate and how to…
Reading data from the web with CSV.jl, DataFrames.jl and Chain.jl
Recently, I had to read in a dataset from Hillenbrand (1995), published as an annotated csv-like file on a website. The dataset describes formant frequencies of several vowel utterances from different speakers. I thought I ended up with a pretty slick implementation showing off some of the tools available in the Julia data science ecosystem.
Tuples and Vectors, Allocations and Performance for Beginners
If you’re new to Julia, here is a scenario that might have tripped you up already: Let’s define two points. Both are just a collection of two floating point numbers. But one is a Vector , written with the [] syntax, and one a Tuple , written with the () syntax. Then we make vectors of both types of points and run a short computation. Let’s see what the performance difference looks like.
Julia Helps To Bridge The Gap Between User and Creator
You might have heard about Julia, the language often praised for the C-like performance it can attain while keeping a clean syntax reminiscent of Python. In this blog post, I want to share a different opinion why I like using Julia, which is only tangentially related to its pure performance. It is about the community Julia enables and how that could have a beneficial influence on the way…