To install, simply set up the ROOT environment (tested with ROOT >= V6.12/04), clone this repository, and run make:

git clone

Checking installation

Upon successful installation, two executables should be in the repository, UndersmoothDemo1 and UndersmoothDemo2, which can be executed as follows:


The former is the test case with two Gaussian peaks and should generate this plot. The latter is the test case with a steeply falling spectrum and should generate this plot. Inspecting the code for these demos in the UndersmoothedUnfolding repository is a recommended way of learning how to set up an unfolding analysis with this software.


  • ROOT >= V6.12/04 (tested up to release V6.18/00)