.. _params: Parameters __________ All the params spefications are in each function of the API, as well the spefications available for :ref:`Individual Parameters `. **N.B. in the newest version of macapype, the -params can be replaced the option -species followed by the NHP species corresponding to the image, e.g. {macaque | marmo | baboon | chimp}, and a default parameter, tested for this species, will be used. It is however still possible to use the -params option and provide a params.json for advanced users** Here is an example of the params.json corresponding to :class:`segment_pnh_spm_based pipeline ` for macaque: .. include:: ../workflows/params_segment_macaque_spm.json :literal: