adding test for run_markov_chain that traps the current output for CmdStan
adding const to run_markov_chain arguments
adding additional arguments to run_markov_chain with defaults.
adding additional arguments to run_markov_chain with defaults.
updating test to push in prefix, suffix, and the ostream
removed std::cout in print_progress; called the fully specified print_progress in run_markov_chain, removed defaults out of run_markov_chain
removed std::cout in print_progress; called the fully specified print_progress in run_markov_chain, removed defaults out of run_markov_chain
adding comment to test
adding prefix, suffix, and osream arguments to stan::common::sample and warmup; added tests
adding a StartTransitionCallback (useful for RStan) to run_markov_chain, sample, warmup, and the calls from command()
adding documentation to mcmc_writer
added an as_csv class
refactored mcmc_writer to take an as_csv object to write
moving as_csv to stan::common::io::as_csv
adding unit test for as_csv
refactoring mcmc_writer to take different arguments
adding comment to mcmc_writer
renaming mcmc_writer's print_* methods to write_*
refactor: renamed stan::common::io::as_csv to stan::common::recorder::csv
adding no_op and values recorder