Write some Software Convert R function to MATLAB function

Hi there, There is a function in R which I would like to use in MATLAB. The source code for this function in R is in the form of a Rcpp .dll file, so I cannot open it and see the code. I am not sure if it is possible, but I would like somebody to find a solution to use the same R .dll file in MATLAB. I do not want to use rscproxy or something, but I need it as an actual function on my machine. The R function I am interested in is called 'svsample2' and 'svsample' in the package 'stochvol'