Refactor Stan files into chunks

[ccs-lab]

Refactor Stan files into chunks

[JaeyeongYang]

I highly agree on the point that repetitions on the codebase make the whole package large and slow on the compilation time. But instead of using one single file for a model, making it a combination of separate code files might lead new developers a little hard to understand the overall processes. So, before we start to make it into separate chunks, I think we should determine which chunks can be organized into one submodule-like group.

In the example of rstanarm, the developers organized them following the code blocks (e.g., functions, data, tdata or transformed data, and so on). Following that kind of approach can be one good way to go.

[dlemfh]

• The custom functions in choiceRT_lba & choiceRT_lba_single
• Code part for declaring y_pred and initializing all elements to -1.