subset_dti-methods: Subset DTI data based on b-values #'

In neurobase: 'Neuroconductor' Base Package with Helper Functions for 'nifti' Objects

Subset DTI data based on b-values #'

Description

Subset DTI data based on b-values #'

Usage

subset_dti(
  img,
  bvals,
  bvecs,
  b_step = 1,
  maximum = Inf,
  shells = NULL,
  verbose = TRUE,
  ...
)

## S4 method for signature 'nifti'
subset_dti(
  img,
  bvals,
  bvecs,
  b_step = 1,
  maximum = Inf,
  shells = NULL,
  verbose = TRUE,
  ...
)

## S4 method for signature 'ANY'
subset_dti(
  img,
  bvals,
  bvecs,
  b_step = 1,
  maximum = Inf,
  shells = NULL,
  verbose = TRUE,
  ...
)

## S4 method for signature 'character'
subset_dti(
  img,
  bvals,
  bvecs,
  b_step = 1,
  maximum = Inf,
  shells = NULL,
  verbose = TRUE,
  ...
)

## S4 method for signature 'list'
subset_dti(
  img,
  bvals,
  bvecs,
  b_step = 1,
  maximum = Inf,
  shells = NULL,
  verbose = TRUE,
  ...
)

Arguments

img	character or nifti object
bvals	filename of b-values (assuming 1 row)
bvecs	filename of b-vectors (assuming 3 rows)
b_step	step of b-values to round to
maximum	maximum b-value threshold
shells	Shells to keep (after rounding)
verbose	print diagnostic messages
...	options passed to checkimg

Value

List of filenames of image, b-values, and b-vectors that were subsetted.

Author(s)

John Muschelli [e-mail]

Examples

## Not run: 
img = "~/Downloads/data.nii.gz"
bvals = "~/Downloads/bvals"
bvecs = "~/Downloads/bvals"
verbose = TRUE
b_step = 50
maximum = 1500
shells = NULL
sub = subset_dti(img = img, bvals = bvals, bvecs = bvecs, 
maximum = 1500,
b_step = 50)


## End(Not run)

neurobase documentation built on Oct. 23, 2022, 5:05 p.m.