Date  Notes  Description  Categories  Reading Time 

20250610  VSCode & Quarto Setup, Current Status and Questions 
To render and preview, execute the Quarto: Preview command. You can alternatively use the Cmd+Shift+K keyboard shortcut.

R, Shiny, Quarto  1 min 
20240910  Serveless Shiny App on Quarto Website  Creating a Serverless R Shiny App using Quarto with R Shinylive (“Include” method)  R, Shiny, Quarto  1 min 
20240831  Error Handling in R  Error handling is important for simulation study  R, Simulation  4 min 
20240828  Example of litedown  You can also embed plots now, for example:  1 min  
20240415  Simulate response patterns under the framework of IRT 
We need to prespecify a (item slopes) and b (item intercepts). mu (factor mean) and sigma (factor correlation) are optional.

R, Simulation, Mirt  6 min 
20240415  Create a ChatGPT chatbot for personal website  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…  Quarto, ChatGPT, AI  2 min 
20240415  Note: Model fits in confirmatory network analysis of PanelVAR modeling  Assume there are n_i items measured by n_t times, then there are n_v = n_t \times n_i. For example, if 3 items are measures by 3 times, there will be 9 measures. Following…  Quarto, ChatGPT, AI  1 min 
20240413  LargeScale Assessments using EdSurvey R Package  W_{final} = \frac{1}{P_{school}*P_{student}*P_{adj}}  R, NAEP, Tutorial, EdSurvey  1 min 
20240404  How to choose network analysis estimation for application research 
Multiple estimation methods for network analysis have been proposed, from regularized to unregularized, from frequentist to Bayesian approach, from onestep to multiple…

R, Bayesian, Tutorial, Network Analysis  21 min 
20240315  How to use Julia in 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…  Julia, Quarto  5 min 
20240310  Observable JS in Quarto document  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.  OJS, Quarto  2 min 
20240310  Tips about Git and 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…

Git, Github  7 min 
20240305  How to use BGGM to Estimate Bayesian Gaussian Graphical Models 
This is a quick note illustrate some importance functions of BGGM and illustrate them using one or more example(s).

R, Bayesian, Tutorial, Network Analysis  4 min 
20240303  Setting up the cursor movement keys in iTerm2 on OSX  This orginal post is from here.  iTerm2, Terminal  2 min 
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