AnalyzeFMRI (version 1.1-24)

GaussSmoothKernel: Calculates a discrete Gaussian smoothing kernel.

Description

Calculates a simple, discrete Gaussian smoothing kernel of a specfic size given the covariance matrix of the Gaussian.

Usage

GaussSmoothKernel(voxdim=c(1, 1, 1), ksize=5, sigma=diag(3, 3))

Arguments

voxdim

Dimensions of each voxel.

ksize

Dimensions of the discrete kernel size.

sigma

The covariance matrix of the Gaussian kernel.

Value

An array of dimension (ksize,ksize,ksize) containing the smoothing kernel.

Examples

# NOT RUN {
a <- GaussSmoothKernel(voxdim=c(1,1,1), ksize=5, sigma=diag(1,3))
# }