This is an R package to predict one multi-way array (i.e., a tensor) from another multi-way array [1].
The MultiwayRegression package can be installed, directly from GitHub, using the devtools library:
install.packages("devtools")
library(devtools)
install_github("lockEF/MultiwayRegression")
library(MultiwayRegression)
[1] Lock, E.F. (2017). Tensor-on-tensor regression. Journal of Computation and Graphical Statistics, to appear, 2017. (arXiv preprint: https://arxiv.org/abs/1701.01037.)