applyEmptyImageDimensions-methods | R Documentation |
Simple wrapper for subsetting an image with indices, dropping empty dimensions.
applyEmptyImageDimensions(img, inds, reorient = FALSE, ...) ## S4 method for signature 'nifti' applyEmptyImageDimensions(img, inds, reorient = FALSE, ...) ## S4 method for signature 'character' applyEmptyImageDimensions(img, inds, reorient = FALSE, ...) ## S4 method for signature 'factor' applyEmptyImageDimensions(img, inds, reorient = FALSE, ...) ## S4 method for signature 'list' applyEmptyImageDimensions(img, inds, reorient = FALSE, ...) ## S4 method for signature 'array' applyEmptyImageDimensions(img, inds, reorient = FALSE, ...) ## S4 method for signature 'anlz' applyEmptyImageDimensions(img, inds, reorient = FALSE, ...) ## S4 method for signature 'ANY' applyEmptyImageDimensions(img, inds, reorient = FALSE, ...) apply_empty_dim(img, ...)
img |
image, nifti object, or array |
inds |
indices of subset from |
reorient |
Should image be reoriented if a filename? |
... |
not used |
Object of class nifti
or array
if nifti
is not supplied
apply_empty_dim
is a shorthand for
applyEmptyImageDimensions
with all the same arguments.
getEmptyImageDimensions
,
dropEmptyImageDimensions
set.seed(5) dims = rep(10, 3) arr = array(rnorm(prod(dims)), dim = dims) arr[,,10] = 0 nim = oro.nifti::nifti(arr) inds = getEmptyImageDimensions(nim) inds_arr = getEmptyImageDimensions(arr) testthat::expect_equal(inds, inds_arr) out = applyEmptyImageDimensions(nim, inds = inds) out_arr = applyEmptyImageDimensions(arr, inds = inds) testthat::expect_equal(out_arr, array(out, dim = dim(out))) out = apply_empty_dim(nim, inds = inds) set.seed(5) dims = rep(10, 3) arr = array(rnorm(prod(dims)), dim = dims) arr[,,10] = 0 nim = oro.nifti::nifti(arr) inds = getEmptyImageDimensions(nim) rnifti = RNifti::asNifti(nim) timg = tempimg(nim) limg = list(factor(timg), factor(timg)) apply_empty_dim(nim, inds = inds) func = function(...) applyEmptyImageDimensions(..., inds = inds) func(arr) func(nim) func(rnifti) func(timg) func(limg)
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