Note | Jihong Zhang
2025
Use redvis to authorize the API
Note: Interactive Data Visualization for R
htmltools
htmlwidgets
Javascript
The interactive web app development in R requires multiple relevant skillsets: HTML, CSS, Javascript, R, and Shiny etc. This is a reading note covering the following books:
`htmltools`: Play with Tachyons
htmltools
htmlwidgets
tachyons
With multiple classes, class argument in tags can be a vector.
Note: Docker in Action, Second Edition
Docker
“Docker is a tool that makes adopting software packaging, distribution, and utilization best practices cheap and sensible defaults.”
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2024
VSCode & Quarto Setup, Current Status and Questions
R
Shiny
Quarto
To render and preview, execute the Quarto: Preview command. You can alternatively use the Cmd+Shift+K keyboard shortcut.
Serveless Shiny App on Quarto Website
R
Shiny
Quarto
Creating a Serverless R Shiny App using Quarto with R Shinylive ("Include" method)
This post shows case one example of new package – litedown from Yihui Xie. Please refer to the Yihui’s documentation for more details.
Simulate response patterns under the framework of IRT
R
Simulation
Mirt
We need to pre-specify a (item slopes) and b (item intercepts). mu (factor mean) and sigma (factor correlation) are optional.
Create a ChatGPT chatbot for personal website
Quarto
ChatGPT
AI
AI products powered by Large language models (LLM) are getting more and more popular in many field. AI agents using ChatGPT can serve as an assistant or efficient workers…
Note: Model fits in confirmatory network analysis of PanelVAR modeling
Quarto
CFA
Assume there are items measured by times, then there are . For example, if 3 items are measures by 3 times, there will be 9 measures. Following…
Large-Scale Assessments using EdSurvey R Package
R
NAEP
Tutorial
EdSurvey
W_{final} = \frac{1}{P_{school}*P_{student}*P_{adj}}
Julia
Quarto
This post illustrates how to use Julia to create a gradient descent algorithm. What has not been introduced, however, is how to perform the data analysis using Julia in…
Observable JS in Quarto document
OJS
Quarto
The documents regarding how to use Observable Javascript in Quarto is extremely lacking. Two main sources for this topic are quarto.org and quarto dashboard.
Git
Github
This happens when I want to pull the remote repo to local but I have some random changes at local. Those random changes should be discarded but using git pull makes those…
How to use BGGM to Estimate Bayesian Gaussian Graphical Models
R
Bayesian
Tutorial
Network Analysis
This is a quick note illustrate some importance functions of BGGM and illustrate them using one or more example(s).
Setting up the cursor movement keys in iTerm2 on OSX
iTerm2
Terminal
This orginal post is from here.
Customize Zotero and Visual Mode of Rstudio
Zotero
Quarto
Rstudio
Visual model of quarto and rmarkdown is very easy to use. Though users can change font family for Source mode in Rstudio by Options menu, there is no direct way change font…
Use High Performance Computing UArk
Tutorial
AHPCC
HPC
Parallelization
My student Nicole recently hosted a excellent workshop on how to use HPC interactively at UArk. Please refer to her website here.
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2020
R
gt
This post is inspired by themockup’s blog and RStudio’s documentation of gt package1.
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