Data blog

Inside the PhD Student Network: Econometrics and Business Statistics at Monash University

R
Data-visualisation
PhD
In this article, I explore an idea suggested by Floyd Everest, which involves analysing the connections between PhD students through shared supervisors using a graph structure. By treating both…
May 7, 2025
Filip Reierson

Improve Quarto Documents by Including a Toggle for Code Folds

Quarto
Website
Observable
I often find that I want to include the code required to produce output in quarto documents. However, sometimes the code can make the quarto document messier to read through, especially for people…
Jan 29, 2025
Filip Reierson

Consider Image-Based Waffle Charts for Your Next Data Story

R
Data-visualisation
In this article I share how to create an image based waffle chart. With some creativity I believe these types of waffle charts can be imactful, while retaining the simplicity of waffle charts.…
Jan 26, 2025
Filip Reierson

Better Inputs for Storytelling With Data

Data-visualisation
Observable
Quarto
In this article I share stylised versions of the select and check box inputs that can be used for more elegant storytelling with data. Sometimes I would like to make inputs feel like they are part…
Jan 2, 2025
Filip Reierson

Show Geoms in a Graph’s Legend Using ggplot2

R
Data-visualisation
To colour or style data in ggplot you can define an aesthetics mapping (aes) or add the styles as an argument to the geom layer. For example, geom_point(aes(colour=var1)) or geom_point(colour='red').…
Dec 15, 2024
Filip Reierson

Visualising Aged Care Star Ratings up to Q4 FY23-24

MOA-Benchmarking
Data-visualisation
The latest Australian aged care star ratings have continued the upward trend. Below I show two animated histograms highlighting how star ratings have changed over time until Q4 FY23-24. The metric…
Nov 20, 2024
Filip Reierson

Trends in Aged Care Star Ratings Visualised (Q4 FY23-24 update)

Data-visualisation
MOA-Benchmarking
In this article I share interactive graphs that allow readers to explore trends in Australian aged care star ratings for various groups of homes.
Nov 17, 2024
Filip Reierson

Floating Profile Picture for Your Quarto Website About Page

Website
In this post I share how to make your profile picture “float” in your quarto website about page. To achieve the desired effect I use the trestles theme which for large screens displays as a two…
Sep 12, 2024
Filip Reierson

A Ridgeline Plot of Aged Care Star Ratings

Analysis
MOA-Benchmarking
Data-visualisation
In this article, I share a ridgeline plot showing the evolution in the distribution of Australian aged care star ratings since they were introduced. I specifically use the overall star rating prior…
Aug 6, 2024
Filip Reierson

Synthetic Control Dataset: The Basque Country

PhD
SCM
R
Data-visualisation
The seminal paper in the synthetic control literature, Abadie and Gardeazabal (2003), explored the impact of terrorism on the Basque Country. In this article I reproduce some of the key figures and…
Jul 15, 2024
Filip Reierson

Exploring Coffee Flavour Notes in The Great American Taste Test

R
Table
Analysis
TidyTuesday
James Hoffman, a coffee expert and YouTuber ran a blind coffee taste test in October of 2023 that involved participants receiving coffee taste kits. See James Hoffman’s live stream or the analysis to…
Jun 13, 2024
Filip Reierson

A Year of Aged Care Star Ratings Visualised

Data-visualisation
MOA-Benchmarking
In this article, I visualise the most recent year of Australian residential aged care star ratings. Using a Sankey chart, I show the flow of star ratings between quarters. The width of each path…
Jun 12, 2024
Filip Reierson

Show Documentation for Your R Function in Quarto on Click

R
In this article I share an approach to displaying documentation for user written functions in a quarto document using Tippy.js popups. The reason I started looking into this is that when I share…
Apr 30, 2024
Filip Reierson

Making a Custom Blog Widget Using GitHub Actions

Recently I wanted to include a widget on the about page of this website showing my current personal best typing speeds. However, my preferred website, Monkeytype, doesn’t appear to have a widget for…
Apr 7, 2024
Filip Reierson

An Interactive Aged Care Star Rating Frequency Chart

Data-visualisation
MOA-Benchmarking
Some time ago I designed a frequency chart for displaying how common various combinations of aged care star ratings are. However, while broad patterns were easy to make out from the static graph…
Mar 25, 2024
Filip Reierson

My Beamer Revealjs Theme

R
Using revealjs and quarto together is a powerful combination especially as there are many R packages for creating interactive html based data visualisations and showing output under code chunks can…
Mar 1, 2024
Filip Reierson

A Knitr Based Approach to R Puzzles

R
The R programming language is full of interesting quirks and functions that do not come up regularly in the typical analyst’s workflow. However, knowing about the less common functions and inner…
Feb 28, 2024
Filip Reierson

The December Effect for Compliments in Aged Care

Analysis
MOA-Benchmarking
Gathering feedback from aged care consumers, representatives, visitors, and staff is key to improving the quality of care offered by aged care services. While constructive criticism is important it…
Dec 12, 2023
Filip Reierson

Potential Underreporting of Pressure Injuries in the National Aged Care Mandatory Quality Indicator Program

Analysis
MOA-Benchmarking
R
In this analysis I consider potential underreporting of pressure injuries in the National Aged Care Mandatory Quality Indicator Program by modelling the reporting of zero pressure injuries.
Nov 3, 2023
Filip Reierson

Aged Care Star Ratings for Q3 FY22-23

Analysis
MOA-Benchmarking
In this article I aim to provide some visualisations and analysis of the star rating extract for Q3 FY22-23, released by the Australian Government Department of Health and Aged Care (2023). I show…
Aug 30, 2023
Filip Reierson

Analysis of Rest Homes in New Zealand

Analysis
MOA-Benchmarking
In this analysis I summarise the full list of certified rest home providers in New Zealand, a publicly available dataset, released by the Ministry of Health-Manatū Hauora (2023).
Jul 28, 2023
Filip Reierson

Lessons From Text Mining Aged Care Consumer Feedback

Analysis
MOA-Benchmarking
Both positive and negative feedback contribute to the continuous improvement of aged care services. Positive feedback recognises and reinforces what is working well, while negative feedback…
Jun 29, 2023
Filip Reierson

Pets in Aged Care

Analysis
MOA-Benchmarking
In this analysis I look at the impact of allowing pets in aged care. Some research has been done that suggests keeping pets in residential aged care can be therapeutic for people living with dementia …
Jun 19, 2023
Filip Reierson

Great Looking Waffle Charts in R

R
Data-visualisation
There are many ways to visualise proportion data, one of which is using a pie chart. However, pie charts are often not ideal because it is harder to assess angles than lengths. Instead we may use a…
Jun 17, 2023
Filip Reierson

People Using Aged Care 2008-2022

Data-visualisation
MOA-Benchmarking
In this article I share some interactive graphs that give insight into the people using aged care services in Australia. My aim was to highlight trends, age structure, and groups of interest. I…
Jun 11, 2023
Filip Reierson
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