Articles by Tony Hirst

Running R and Debian Linux in the Browser Via WASM

February 17, 2022 | Tony Hirst

A few weeks ago, I noted the appearance of georgestagg/webR, an R distribution compiled to WASM that runs completely in the browser. The environment is served from a simple webserver, and requires no installation of R onto a back-end server or onto your own desktop. Instead, the environment runs ...

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Using R To Calculate A Simple Speed Model For Rally Stage Routes

October 13, 2021 | Tony Hirst

A few months ago, I started hacking together an online e-book on Visualising WRC Rally Stages With rayshader and R. One of the sections (Estimating speeds) described the construction of a simple speed model based around the curvature of the stage route. As part of another sprint into some rally ...

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Fragment: Tools of Production – ggalt and encircling scatterplot points in R and Python

August 13, 2021 | Tony Hirst

In passing, I note ggalt, an R package containing some handy off-the-shelf geoms for use with ggplot2. Using geom_encircle() you can trivially encircle a set of points which could be really handing when demonstrating / highlighting grouping various sets of points in a scatterplot: See the end of this post ...

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When Less is More: Data Tables That Make a Difference

March 15, 2021 | Tony Hirst

From this, we immediately note the ordering (more on this in another post) which seems not useful. It is, in fact, the road order (i.e. the order in which each driver started the stage). We also note that the final split is not the actual final stage time: the ...

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From Visual Impressions to Visual Opinions

March 12, 2021 | Tony Hirst

In The Analytics Trap I scribbled some notes on how I like using data not as a source of "truth", but as a lens, or a perspective, from a particular viewpoint. One idea I’ve increasingly noticed being talked about explcitly across vari...

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Thinks Another: Using Spectrograms to Identify Stage Wiggliness?

March 2, 2021 | Tony Hirst

Last night I started wondering about ways in which I might be able to use signal processing (Fourier analysis) or symbol dynamics (eg Thinks: Symbolic Dynamics for Categorising Rally Stage Wiggliness?) to help categorise the nature of rally stage twistiness. Over a morning coffee break, I reminded myself of spectrograms, ...

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Automatically Detecting Corners on Rally Stage Routes Using R

February 19, 2021 | Tony Hirst

One of the things I’ve started pondering with my rally stage route metrics is the extent to which we might be able to generate stage descriptions of the sort you might find on the It Gets Faster Now blog. The idea wouldn’t necessarily be t...

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Personally Learning

February 17, 2021 | Tony Hirst

Notes and reflections on a curiosity driven personal learning journey into geo and rasters and animal movement trajectory categorisation and all sorts of things that weren’t the point when I started… Somewhen over the last month or so, I must have noticed a 3D map produced using the rayshader ... [Read more...]

Visualising Rally Route Stages (with help from rayshader and some ecologists…)

February 17, 2021 | Tony Hirst

Inspired by some 3D map views generated using the rayshader and rgl R packages, I wondered how easy it would be to render some 3D maps of rally stages. It didn’t take too long to get a quick example up and running but then I started wondering wh... [Read more...]

Running R Projects in MyBinder – Dockerfile Creation With Holepunch

September 11, 2019 | Tony Hirst

For those who don’t know it, MyBinder is a reproducible research automation tool that will take the contents of a Github repository, build a Docker container based on requirements files found inside the repo, and then present the user with a temporary, running container that can serve a Jupyter ...

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Looking Up R / CRAN Package Maintainers With an ac.uk Affiliation

September 10, 2019 | Tony Hirst

Trying to find an examiner for a particular PhD thesis relating to a rather interesting datastructure for wrangling messy datatables, I wondered whether we might find a likely suspect amongst the R package maintainer community. We can get a list of R package maintainers here and a list of package ...

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Fragment – Running Multiple Services, such as Jupyter Notebooks and a Postgres Database, in a Single Docker Container

September 12, 2018 | Tony Hirst

Over the last couple of days, I’ve been fettling the build scripts for the TM351 VM, which typically uses vagrant to build a VirtualBox VM from a set of shell scripts, so they can be used to build a single Docker container that runs all the TM351 services, specifically ... [Read more...]

Embedded Audio Players in Jupyter Notebooks Running IRKernel

September 6, 2018 | Tony Hirst

For ref, when running IRkernel Jupyter R notebooks, media objects can be embedded by making use of the shiny::tags function, that can return HTML elements with appropriate MIME types, and are renderable using _repr_html machinery (h/t @flying-sheep): For example: PS By the by, I notice the existence ...

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First Class R Support in Binder / Binderhub – Shiny Apps As Well as R-Kernels and RStudio

July 5, 2018 | Tony Hirst

I notice from the binder-examples/r repo that Binderhub now appears to offer all sorts of R goodness out of the can, if you specify a particular R build. From the same repo root, you can get: Jupyter notebook+R: http://beta.mybinder.org/v2/gh/binder-examples/r/master?filepath=...

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Generative Assessment Creation

May 14, 2018 | Tony Hirst

It’s coming round to that time of year where we have to create the assessment material for courses with an October start date. In many cases, we reuse question forms from previous presentations but change the specific details. If a question is suitably defined, then large parts of this ...

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R HTMLWidgets in Jupyter Notebooks

April 26, 2018 | Tony Hirst

A quick note for displaying R htmlwidgets in Jupyter notebooks without requiring pandoc – there may be a more native way but this acts as a workaround in the meantime if not: PS and from the other side, using reticulate for Python powered Shiny apps.

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Generating Text From An R DataFrame using PyTracery, Pandas and Reticulate

April 8, 2018 | Tony Hirst

In a couple of recent posts (Textualisation With Tracery and Database Reporting 2.0 and More Tinkering With PyTracery) I’ve started exploring various ways of using the pytracery port of the tracery story generation tool to generate variety of texts from Python pandas data frames. For my F1DataJunkie tinkerings I’...

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Sketch – Data Trivia

April 7, 2018 | Tony Hirst

A bit more tinkering with F1 data from the ergast db, this time trying to generating trivia / facts around races. The facts are identified using SQL queries: Some of the queries also embed query fragments, which I intend to develop further… I'm using knitr to generate Github flavoured markdown (gfm) ... [Read more...]

Tinkering with Competitive Supertimes

April 6, 2018 | Tony Hirst

I’m back on the R thang with F1 data from ergast.com, and started having a look at how drivers and teams compare at a circuit. One metric I came across for comparing teams over a season is the supertime, typically calculated for each manufacturer as the average of ...

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Note On My Emerging Workflow for Working With Binderhub

December 1, 2017 | Tony Hirst

Yesterday saw the public reboot of Binder / MyBinder (which I first wrote about a couple of years ago here), as reported in The Jupyter project blog post Binder 2.0, a Tech Guide and this practical guide: Introducing Binder 2.0 — share your interactive research environment. For anyone not familiar with Binder / MyBinder, it’... [Read more...]

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Articles by Tony Hirst

Running R and Debian Linux in the Browser Via WASM

Using R To Calculate A Simple Speed Model For Rally Stage Routes

Fragment: Tools of Production – ggalt and encircling scatterplot points in R and Python

When Less is More: Data Tables That Make a Difference

From Visual Impressions to Visual Opinions

Thinks Another: Using Spectrograms to Identify Stage Wiggliness?

Automatically Detecting Corners on Rally Stage Routes Using R

Personally Learning

Visualising Rally Route Stages (with help from rayshader and some ecologists…)

Running R Projects in MyBinder – Dockerfile Creation With Holepunch

Looking Up R / CRAN Package Maintainers With an ac.uk Affiliation

Fragment – Running Multiple Services, such as Jupyter Notebooks and a Postgres Database, in a Single Docker Container

Embedded Audio Players in Jupyter Notebooks Running IRKernel

First Class R Support in Binder / Binderhub – Shiny Apps As Well as R-Kernels and RStudio

Generative Assessment Creation

R HTMLWidgets in Jupyter Notebooks

Generating Text From An R DataFrame using PyTracery, Pandas and Reticulate

Sketch – Data Trivia

Tinkering with Competitive Supertimes

Note On My Emerging Workflow for Working With Binderhub

Articles by Tony Hirst

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