Hi @teketo! Welcome!
The LearnBayes package (where blinreg() is found) is the companion package to the book Bayesian Computation with R by Jim Albert. The book website links to resources that might help you, including:
- R scripts for all the examples in the book
- An R Markdown Notebook on linear regression, as well as many other examples
- A large series of blog posts on Bayesian regression, among other topics
In case you’re asking this question in connection with work for a class of some sort, please do be aware of our Homework Policy. If you’re looking for more specific help with a problem in your code, the best place to start is by reading our FAQ: Tips for writing R-related questions.