Chapter 2 pdmphmc “Hello World”

This section assumes that pdmphmc R-package has already been installed.

2.1 Requirements

Other than a working installation of R and R-package rstan (with dependencies), the pdmphmc package requires a working C++ compiler.

• On mac, linux, this is typically available as g++ on the command line. If you get an error message when running e.g. g++ -v in the command line, you need to get the g++ for your system.
• On Windows, testing of pdmphmc is done using the GCC 10/MinGW-w64 compiler toolchain that comes with the Rtools (https://cran.r-project.org/bin/windows/Rtools/), but it should also be noted that it should be possible to use different compilers.

2.2 Check your installation

The simplest way to check your installation is to try to run the testSystem()

success <- pdmphmc::testSystem()

## model name : model

## process type : HMCProcessConstr

## Runge Kutta step type : RKBS32

## Transport map type : diagLinearTM_VARI

## compilation exited successfully

## model ran successfully

If the last line printed reads “model ran successfully”, you are good to go.

If not, there is something wrong with the setup for your system. A good starting point for resolving compilation issues is first check that your installation of package rstan is really working, see https://github.com/stan-dev/rstan/wiki/RStan-Getting-Started for details.