How to input data from C++ stringstream objects and suppress stdout in `cmdstan::command`

Interfaces CmdStan
1

Hi all,

I have two questions w.r.t. the cmdstan::command function interface.

  • I want to know if the cmdstan::command function in new Stan version (e.g. 2.20.0) supports input data from istringstream objects. This interface was implemented in very early versions, such as the function int command(int argc, const char* argv[], std::istringstream & ifs) in the file stan/common/command.hpp of the version 2.6.0. But I didn’t find a similar interface in 2.20.0. Do we have some other ways to read input from C++ stream objects instead of a file in the hard drive?

  • How could we suppress the stdout info in the cmdstan::command function in 2.20.0? Stdout prints some summary information of the model and sampling process. Although we can redirect stdout info to /dev/null in the Shell level. However, I want to find a solution when calling the cmdstan::command function. Thank you.

Environment info:

  • Operating System: Ubuntu 18.04
  • CmdStan Version: 2.20.0
  • Compiler/Toolkit: g++ 7.4.0