- Use the standard package check (check on the tarball instead of the source tree). - Run commands in parallel. - Cleanup dependencies installation. - Replace makefile. - Documentation. - Test using the image from rhub.
The documentation of xgboost is generated with recommonmark and sphinx. You can build it locally by typing "make html" in this folder. Checkout https://recommonmark.readthedocs.org for guide on how to write markdown with extensions used in this doc, such as math formulas and table of content.