Programming Leftovers

posted by Roy Schestowitz on Nov 24, 2022

• Cut for time

  Gaining back some build performance: a hot build of my website, in development, takes 5 seconds on a pretty good machine. I'd like to try some sort of "micro-service architecture" but it's just a bunch of binaries doing IPC between each other. Each target is built and linked independently, everyone's happy. I'm curious to see how that would perform!

• The carcinization of Go programs

  Sometimes you just need to embed this one library written in another language into your program. This is a common thread amongst programmers time immemorial. This has always been a process fraught with peril, fear, torment, and lemon-scented moist towelettes for some reason.

  Normally if you want to call a Rust function from Go, you have to go through some middleman like cgo. This works and is somewhat elegant for how utterly terrible a hack cgo is.

• Power Analysis for a DV Test - Frequentist and Bayesian Estimation in R - [R]eliability

  When testing is costly or resource intensive, it’s not uncommon for management to ask an engineer “what are the chances that we pass?”. The answer will depend on the team’s collection of domain knowledge around the product and requirement but also in how the question is interpreted. It will also be sensitive to sample size considerations. In this post, I will show how to conduct an analysis to inform the response from both a Frequentist and Bayesian perspective. Simulation will be used whenever possible to avoid the need for external references and the predictions will be used to inform a recommendation of sample size.

• Asia Against Dollar: Forecasting with Modeltime

  While the US midterm election escalated, the dollar’s performance weakened; especially this situation happened against the Asian currencies. South Korean won(KRW) is the best performer among them. The Chinese yuan(CNY) was behind its counterparts because of their aggressive public health measures related to the zero-COVID protocol.

  Let’s add the Japanese yen(JPY) and Malaysian ringgit(MYR) to the above currencies and analyze them via the timetk package. First, we will compare the mentioned Asian FX rates between 2018-2022 years with line charts.

• Using functional analysis to model air pollution data in R | Nicola Rennie

  Let’s say you need to understand how your data changes within a day, and between different days. For example, if you have hourly pollution data that follows a regular pattern throughout a day, but follows different patterns on a Wednesday and Saturday. Functional analysis is one approach of doing just that. During my PhD, I developed methods based on functional analysis to identify outlier demand in booking patterns for trains in railway networks. To demonstrate that those statistical methods are also applicable in other areas, I started to analyse air pollution data across the United Kingdom. This blog post will discuss the idea of using functional analysis to model air pollution data with the aim of identifying abnormal pollution days.

• Async fn in trait, for real this time

• Async fn in trait... not

  I was planning on showing the in-progress async_fn_in_trait feature in the context of my website, but it turns out, I can't!