sfMM-calcMultiPotential_cpp: Computation of the spatial potential

In bozenne/MRIaggr: Management, Display, and Processing of Medical Imaging Data

Description

C++ function that computes the regional potential of spatial groups. For internal use.

Usage

calcMultiPotential_cpp(W_SR, W_LR, sample, threshold, coords, 
         distance_ref, nbGroup_min, multiV, neutre)

Arguments

W_SR	The local neighborhood matrix. dgCMatrix. Should be normalized by row (i.e. rowSums(W_SR)=1).
W_LR	The regional neighborhood matrix. dgCMatrix. Should contain the distances between the observations (0 indicating infinite distance).
sample	The group probability membership. numeric vector.
threshold	The minimum value to consider non-negligible group membership. numeric.
coords	The voxel coordinates. matrix.
distance_ref	The intervals of distance defining the several neighborhood orders in W_LR. numeric vector.
nbGroup_min	The minimum group size of the spatial groups required for performing regional regularization. integer.
multiV	Should the regional potential range be specific to each spatial group ? logical.
neutre	the value to which the regional potential is set when the group is too small to compute it. numeric.

See Also

calcMultiPotential which is the R interface to this C++ function.

bozenne/MRIaggr documentation built on May 13, 2019, 1:39 a.m.