refund (regression with functional data) was introduced in this paper and has grown into a project with many collaborators; GitHub page here.

vows (voxelwise semiparametrics) implements the methods of this paper.

dbicc, on the GitHub page of my former postdoc Meng Xu, implements the distance-based intraclass correlation coefficient proposed in this paper.

store, on the GitHub page of my former postdoc Prince Peprah Osei, implements the state-trait ordinal regression method proposed here.