Running Closure Tests

In this section, we demonstrate how to run closure tests using Colibri. In the closure test tutorial, we run a standard closure test using the Les Houches parametrisation as a model. This tutorial covers how to implement this model in Colibri.

In the model-specific closure test tutorial, we cover the settings that need to be added to the runcard to run a model-specific closure test.

Note

In NNPDF terminology, a closure test is a predictive-posterior check. For further details, see [BCDC+25] and [DDGW22].

If you haven’t already done so, you will need to follow the installation instructions first.

• Running a Closure Test
• Model-Specific Closure Test