Usage
simulPottsFast_cpp(W_i, W_p, W_x, site_order, sample, rho, n, p, iter_nb)
Arguments
W_i
the 0-based row numbers for each non-zero element in the sparse neighbourhood matrix. integer vector.
W_p
the pointers to the initial (zero-based) index of elements in the colum of the sparse neighbourhood matrix. integer vector.
W_x
the non-zero elements of the matrix. numeric vector.
site_order
a specific order to go all over the sites. An integer vector or a negative number to indicate no specific order.
sample
A matrix containing the initial observations (by rows) for the various groups (by columns).
rho
A numeric corresponding to the Potts model parameter (i.e. intensity of the neighbourhood correlations).
n
The number of observations. integer.
p
The number of groups or colors. integer.
iter_nb
The maximum number of iteration of the Gibbs sampler. integer.