nii2R: NIfTI-to-R conversion

Description Usage Arguments Value Author(s) See Also

Description

Reads in a NIfTI (.nii) file and puts the data in a 4-dimensional array.

Usage

1
2
nii2R(niifilename, which.vols = NULL, savename = NULL, remove.zero = TRUE,
  maskname = NULL, ind = NULL, ind.auto = TRUE, coord = NULL)

Arguments

niifilename

the path for the .nii file.

which.vols

which volumes (images) to include. In terms of the 4D array, this refers to subsetting in the fourth dimension. If NULL (the default), all volumes are included.

savename

if non-NULL, the name of the .RData file to which the 4D array will be saved.

remove.zero

optional when maskname is not provided. If TRUE, a binary array indicating the voxels with nonzero measures based on the first three dimension of the nii file will be provided. If FALSE, a 3D array with TRUE everywhere will be provided.

maskname

name of a .nii file providing a "mask", a 3D binary array indicating which voxels to include.

ind, ind.auto

ind is an optional list saying which indices (which slices of the image) to include in each of the three dimensions. If NULL, this will be all slices with nonzero data if ind.auto = TRUE, and all slices otherwise.

coord

coordinates of the first three dimensions of the 4D array created.

Value

a 4-dimensional array.

Author(s)

Lei Huang huangracer@gmail.com, Philip Reiss phil.reiss@nyumc.org and Rong Jiao jiaorong007@gmail.com

See Also

R2nii


vows documentation built on May 2, 2019, 9:26 a.m.