Posts

Notes on statistics, research, teaching, and side projects.

Migrating My Blog from Jekyll to Quarto

Quarto

Web

Blogging

This site now runs on Quarto — no more Ruby, one toolchain for posts, slides, and CV, and every old URL still works.

CPAS is Now a Website: croppas.com

Apps

Web

Research

Agriculture

The Crop Protection Analytics System (CPAS) has moved from an R Shiny app to a standalone website — estimating the economic value of disease management in Australian broadacre cropping.

Open Day Web App Demo: Turning Data into Interactive Stories

Apps

Web

Demo

A showcase of my open-day web app demo for interactive, data-driven exploration.

Mortgage Mate — Support & FAQ

Apps

iOS

Finance

Support page and frequently asked questions for Mortgage Mate — the data-driven home loan simulator for Australian buyers.

Mortgage Mate: A Data-Driven Home Loan Simulator for Australian Buyers

Apps

iOS

Finance

A data-driven personal finance simulator for Australian home buyers — built by a statistician, not a banker.

MenuMate is Live on the App Store! 🎉

Apps

iOS

AI

AI点菜助手 - MenuMate has been approved by Apple and is now available for download on the App Store!

MenuMate: AI-Powered Menu Assistant - updated

Apps

iOS

AI

Your AI-powered dining companion for smarter, healthier meal choices

PromptlySocial: My New iOS App for Social Media Posts

App Development

AI

Hey everyone! I just launched a new iOS app called PromptlySocial that I think you’ll find useful if you’re struggling with what to post on social media.

ASC Perth: Design and Spatial Analysis of On-Farm Strip Trials – From Principles to Simulation Evaluations

Conference

Statistics

Research

I presented at the Australian Statistical Conference (ASC) in Perth (December 2025), sharing a comprehensive study on statistical strategies for the design and analysis of…

IBS Canberra: Bayesian Ordinal Regression for Crop Development and Disease Assessment

Conference

Statistics

Research

I presented at the International Biometric Society (IBS) meeting in Canberra (November 2025), sharing recent developments in Bayesian ordinal regression methods for…

ANU Seminar: Design and Spatial Analysis of On-Farm Strip Trials

Seminar

Statistics

Research

Yesterday, I had the pleasure of presenting at the Australian National University (ANU) seminar series. The presentation focused on statistical strategies for the design and…

🎓 New Beginnings at EECMS: Lecturer in Statistics

EECMS

Curtin

Lecturer

Academic Life

Statistics

This week marks an exciting new chapter in my academic career — I’ve joined the School of Electrical Engineering, Computing and Mathematical Sciences (EECMS) at Curtin…

OZWeatherApp: AI-Powered Australian Weather & Climate Insights

R Shiny

Weather

AI

Australia

🌦️ OZWeatherApp

Launching Stats Journey – A Statistics Learning Platform

Project

Education

Statistics

Introducing Stats Journey, an interactive learning platform for statistics and data science education built with modern web technologies.

Proving the Superiority of Systematic Designs in On-Farm Trials

Research

Experimental Design

Conference

Presentation at AAGI Annual Science Symposium on systematic design superiority in on-farm agricultural trials.

Calculating LSD Values of ASReml-R Model

R

Statistics

ASReml

The LSDlabels function is used for calculating the LSD values for the pairwise comparisons from the ASReml-R model.

Presentation at AASC 2024

Presentation

This is the presentation that I gave on 4th September at AASC 2024 Rottnest Island.

Presentation at Pawsey Centre

Presentation

This is the 5-minute presentation that I gave to GRDC western panel and growers at Pawsey Centre..

A Deep Spatio-temporal Gaussian Process for Yield Prediction in West Australia

Work

In the realm of precision farming, the application of Machine Learning (ML) and Deep Learning (DL) algorithms has proven to be invaluable for analyzing and modeling…

An Introduction to RShiny

Workshop

It’s a workshop provided to introduce participants to RShiny, a powerful web application framework for R. During this workshop, attendees will learn how to create…

A Bayesian Workflow for Spatially Correlated Random Effects in On-farm Experiment

Work

Check out the embedded Quarto HTML file below:

Optimal design for on-farm strip trials — systematic or randomised?

Work

There is no doubt on the importance of randomisation in agricultural experiments by agronomists and biometricians. Even when agronomists extend the experimentation from…

Confounded Treatment and Blocking Structure

Statistics

Experimental Design

Encounted a problem that the treatment is confounded with the blocking structure. In this situation, it is not possible to assess the interaction of the treatment and…

A note on estimating LMM with REML and Bayesian approaches

Statistics

Bayesian

LMM

I encountered that REML and Bayesian approahes treat the random term \(u\) of a linear mixed model differently.

Presentation at SAGI Symposium 2020

Presentation

This is the joint presentation by me and Suman at SAGI Symposium 2020.

Good PP check and R square but large Pareto k values

Work

Recently, I encountered a problem with using PSIS and Pareto k for model diagnostics and selection. Some models have good posterior predictive checking performance but a few…

Single Site OFE

OFE

Statistics

The data set is lasrosas.corn from the R-package agridat. The yield monitor data for a corn field (quintals/ha) was conducted by incorporating six nitrogen rate treatments…

Presentation at IBS 2019

Presentation

This is the presentation that I gave on 5th December at IBS 2019 Adelaide.

The optimal we found is not the best we want

Statistics

Optimisation

The yield data is from the paper Chen, O’Leary, and Evans (2019). The data is collected from two sites: CNT and NVT. We just focus on the site NVT.

Model Selection

Statistics

Model Selection

分享一下在新西兰打官司（维权）的经历

Life

事情已经过去快2年了，今天闲来无事，回想了一下过去几年发生在自己身上的事，觉得这件事可以分享出来，给在国外留学和生活的朋友们一点建议和意见。同时也鼓励大家，在外求学生活不易，遇事不要慌，也不必忍气吞声，必要时学会用法律武器维护自己的权益。

Department Seminar, 2018

Presentation

A seminar at the Department of Maths & Stats, University of Otago, in July 2018.

Poster at Bayes Comp 2018, Barcelona

Presentation

This is the poster of the work done with my supervisor Dr. Matthew Parry. The poster was given at the conference Bayes Comp 2018, Barcelona.

Presentation at ICSA Shanghai 2016

Presentation

The first international conference that I attended at Dec 2016. This is part of the work during my PhD at the University of Otago.

New Zealand Maths and Stats Postgraduates Conference, 2016

Presentation

We are the organizer of the NZMASP Conference 2016. It was held at Queenstown, Otago!

Department Seminar, 2016

Presentation

A seminar at the Department of Maths & Stats, University of Otago, in May 2016.

New Zealand Maths and Stats Postgraduates Conference, 2015

Presentation

Abstract: Tractors, working on an orchard or vineyard, are often fitted with GPS units. These GPS units provide position and velocity information with errors to orchardists…

New Zealand Maths and Stats Postgraduates Conference, 2014

Presentation

The New Zealand Maths and Stats Postgraduates Conference 2014 where I gave a presentation in English for the first time. It was a big challenge for me, and I really enjoy it!