You can install the development version of spheregr from GitHub with:
# install.packages("devtools")
devtools::install_github("ChristofSch/spheregr")
The folder article_scripts
contains all R-scripts needed to create the
figures and tables of the article Regression in Nonstandard Spaces with
Fréchet and Geodesic Approaches. The execution of the simulation
studies may take several hours (up to a few days).