NeuroHyperVec: Constructor for NeuroHyperVec class

In bbuchsbaum/neuroim2: Data Structures for Brain Imaging Data

Constructor for NeuroHyperVec class

Description

Constructor for NeuroHyperVec class

Usage

NeuroHyperVec(data, space, mask)

Arguments

data	A matrix or three-dimensional array containing the data.
space	A NeuroSpace object defining the spatial dimensions.
mask	A mask volume (array, vector, or LogicalNeuroVol).

Value

A new NeuroHyperVec object.

See Also

NeuroSpace, LogicalNeuroVol

Examples

# Create a 5D space (10x10x10 spatial, 2 trials, 2 features)
space <- NeuroSpace(c(10,10,10,2,2))

# Create a mask for the spatial dimensions
space3d <- NeuroSpace(c(10,10,10))
mask_data <- array(TRUE, dim=c(10,10,10))  # All voxels active
mask <- LogicalNeuroVol(mask_data, space3d)

# Create data in the format expected by NeuroHyperVec:
# 3D array with dimensions [features x trials x voxels]
n_features <- 2
n_trials <- 2
n_voxels <- sum(mask_data)  # 1000 voxels
data_array <- array(rnorm(n_features * n_trials * n_voxels), 
                   dim = c(n_features, n_trials, n_voxels))

# Create the NeuroHyperVec object
hvec <- NeuroHyperVec(data_array, space, mask)

bbuchsbaum/neuroim2 documentation built on Feb. 26, 2025, 3:49 p.m.