simprepSpatial: Prepare spatial structure of the data

In NeuroStat/neuRosim: Functions to Generate fMRI Data Including Activated Data, Noise Data and Resting State Data

Description

Prepare a list defining the necessary parameters to specify the spatial structure of the activation data.

Usage

simprepSpatial(regions, coord, radius = NULL, 
	form = c("cube", "sphere", "manual"), fading = 0)

Arguments

regions	Number of activated regions.
coord	List of coordinates specifying the xyz-coordinates.
radius	If form=cube or sphere, the distance between the center and the edge, if form=manual, the number of voxels in each region.
form	The form of the activated regions.
fading	Decay rate between 0 and 1. 0 means no fading, while 1 results in the fastest decay.

Value

A list with the necessary arguments to be used in simVOLfmri.

Author(s)

M. Welvaert

See Also

simVOLfmri, simprepTemporal, specifyregion

Examples

coord <- list(c(3,3,3),c(6,6,6))
radius <- c(1,2)
out <- simprepSpatial(2, coord, radius, form="cube", fading=0.2)

NeuroStat/neuRosim documentation built on Sept. 14, 2019, 10:37 a.m.