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Welcome!

This is the top-level developer Wiki for the Stan project. If you're not a Stan developer, you're probably looking for:

• Stan's Home Page

Each of the Stan code repositories here on GitHub has its own set of Wiki pages, with information of interest to all projects being listed here.

User Facing Wiki Pages

• Prior choice
• Where do I report bugs or request features?
• Frequently encountered problems
• Installing older versions

To-Do List

• Longer-term to-do items

Stan Meetings

• Dev meeting agenda

Developer Process

Process

• Dev process overview
• Git process

New Functions

• Contributing new functions

Code Style

• Code quality
• Coding style and idioms
• Doxygen for API doc

Testing

• Testing framework
• Testing tools and procedures
• Googletest for unit tests
• Python unit test script
• Jenkins for continuous integration
• Continuous integration (1)
• Continuous integration (2)

Miscellaneous

• How to upgrade version numbers

Feature Specifications

Language

• Ragged arrays
• Tuple data type
• Sparse matrix data type
• Functionals and higher-order functions
• Stan 3 density notation and increments
• Parameter labeling
• Logging
• Parser pedantic mode

Interfaces

• Services refactor
• CloudStan
• Log levels and consolidated output across interfaces
• Stan 3 unified interface
• Stan C++ API refactor

I/O

• JSON I/O
• Protocol buffer I/O
• Output format

Algorithms

• Max (marginal) likelihood
• ODE models

Documentation

• Documentation reorganization

Developer Miscellany

• Compiler and OS detection in C++
• C++ 11
• Helpful tricks
• Include what you use
• Model C++ concept
• ODE integrator support
• Developer UI guidelines
• Yeti cluster at Columbia

Advertising and Fundraising

• Sell sheets