RegionSquare: Create a square region of interest where the z-dimension is...

In neuroim: Data Structures and Handling for Neuroimaging Data

Description

Create a square region of interest where the z-dimension is fixed at one voxel coordinate.

Usage

RegionSquare(bvol, centroid, surround, fill = NULL, nonzero = FALSE,
  fixdim = 3)

Arguments

bvol	an BrainVolume or BrainSpace instance.
centroid	the center of the cube in voxel coordinates.
surround	the number of voxels on either side of the central voxel.
fill	optional value(s) to assign to data slot.
nonzero	keep only nonzero elements from bvol. If bvol is A BrainSpace then this argument is ignored.
fixdim	the fixed dimension is the third, or z, dimension.

Value

an instance of class ROIVolume.

Examples

 sp1 <- BrainSpace(c(10,10,10), c(1,1,1))
 square <- RegionSquare(sp1, c(5,5,5), 1)
 vox <- coords(square)
 ## a 3 X 3 X 1 grid
 nrow(vox) == 9

neuroim documentation built on May 2, 2019, 1:04 p.m.