Warning opnmfR is still under development and some parts are not completely tested.
In R terminal
install.packages("remotes")
remotes::install_github("kaurao/opnmfR")
Note Microsoft R Open comes with MKL and can substantially improve runtime performance of Rcpp functions by using threads.
data("iris")
nn = opnmfR_ranksel_perm(data.matrix(iris[,1:4]), 1:4, W0="nndsvd")
Install gpuR following the instrctions here:
Note that some of the instructions are opudated, e.g. nvidia toolkit for ubuntu14.04. Go to the nvidia page and follow the instructions there.
I needed to do the following on ubuntu 16.04:
sudo apt-get install opencl-headers ocl-icd-opencl-dev
Get the correct .deb from https://developer.nvidia.com/cuda-downloads and follow the associated instructions.
Run sudo R and then install.packages('gpuR')
And then run R in sudo mode