31 posts tagged with #r
I'm house-hunting, and while I'd love to buy a 5-bedroom house with a pool 10 minutes walk from Flinders Street Station I probably can't afford that. So I need to take a broader look at Melbourne. I'm house-hunting, and while I'd love to buy a 5-bedroom house with a pool 10 minutes walk from Flin......
I've been playing around with an idea for a new R package. I call it exemplar and here's how it works: I provide an example of what data should look like --- an exemplar. The package gives a function that checks to make sure that any new data looks the same. The generated function checks --- ......
When I train a machine learning model in a blog post, I edit out all the mistakes. I make it seem like I had the perfect data I needed from the very start, and I never add a useless feature. This time, I want to train a model with all the mistakes and fruitless efforts included. When I train a ma......
I have a URL with a colour parameter, like "<https://example.com/diamonds?colour=H>". When I go to this URL in my browser, an AWS Lambda instance takes that parameter and passes it to rmarkdown::render
Metaflow is one of my favourite R packages. Actually, it's a Python module, but the R package provides a set of bindings for running R code through Metaflow. Recently I've spent a good amount of effort trying to improve the way that R dat...
The Animal Crossing Portal is a fan site that runs a monthly poll on favourite villagers. They keep historical data in publicly available Google Sheets, which makes a data scientist like me very happy. The Animal Crossing Portal
I went down a strange path recently, trying to compile binaries of R packages for Linux. I'm not sure why --- this area is pretty much covered by the RStudio Package Manager. I'll leave my Dockerfiles here in case they're of any use to a future wayw...
I have a machine learning model that takes some time to train. Data pre-processing and model fitting can take 15--20 minutes. That's not so bad, but I also want to tune my model to make sure I'm using the best hyper-parameters. With 16 different combinations of hyperparameters and 5-fold cross-va......
AWS has announced support for container images for their serverless computing platform Lambda. AWS doesn't provide an R runtime for Lambda, and this was the excuse I needed to finally try to make one. [AWS has annou...
Locking down R package dependencies and versions is a solved problem, thanks to the easy-to-use renv package. System dependencies --- those Linux packages that need to be installed to make certain R packages work --- are a bit harder to manage. Locking down R package dependencies and versions i......