A GeoFIS package for the R software (version >= 4.0) is available on the CRAN repository:
https://cran.r-project.org/package=GeoFIS
This package provides methods for processing spatial data for decision-making
See the documentation of the package https://cran.r-project.org/web/packages/GeoFIS/GeoFIS.pdf
and the vignettes Data Fusion with GeoFIS and Zoning with GeoFIS
By installing GeoFIS you accept the CeCILL free software license agreement