Robust Adaptive Metropolis Algorithm
Function for adapting the shape of the random walk Metropolis proposal
as specified by robust adaptive Metropolis algorithm by Vihola (2012) <10.1007>.
The package also includes fast functions for rank-one Cholesky update and downdate.
These functions can be used directly from R or the corresponding C++ header files
can be easily linked to other R packages.10.1007>