copyNIfTIHeader: Copy NIfTI Header to an array

Description Usage Arguments Value Examples

View source: R/copyNIfTIHeader.R

Description

Copies slots of a nifti object to an array. This is useful if you're subsetting 4D data and getting an array out

Usage

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copyNIfTIHeader(img, arr, drop_slots = c(".Data", "dim_"), drop = TRUE,
  onlylast = TRUE, warn = TRUE, ...)

Arguments

img

object of class nifti to copy header

arr

array to copy header information

drop_slots

Slots not to copy over from header

drop

Should dropImageDimension be called before returning?

onlylast

if drop = TRUE, passed to dropImageDimension, if only the last dimensions should be dropped

warn

if drop = TRUE, passed to dropImageDimension, for warning print out

...

arguments to pass to nifti

Value

Object of class nifti the size of arr

Examples

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img = nifti(img = array(rnorm(10^4), dim=rep(10, 4)), dim=rep(10, 4), datatype = 16)
sub = img[,,,1:3]
copyNIfTIHeader(img, sub)
sub = img[,,,1, drop=FALSE]
copyNIfTIHeader(img, sub) 
copyNIfTIHeader(img, sub, drop = FALSE) 

Example output

Loading required package: oro.nifti
oro.nifti 0.7.2
NIfTI-1 format
  Type            : nifti
  Data Type       : 16 (FLOAT32)
  Bits per Pixel  : 32
  Slice Code      : 0 (Unknown)
  Intent Code     : 0 (None)
  Qform Code      : 0 (Unknown)
  Sform Code      : 0 (Unknown)
  Dimension       : 10 x 10 x 10 x 3
  Pixel Dimension : 1 x 1 x 1 x 1
  Voxel Units     : Unknown
  Time Units      : Unknown
NIfTI-1 format
  Type            : nifti
  Data Type       : 16 (FLOAT32)
  Bits per Pixel  : 32
  Slice Code      : 0 (Unknown)
  Intent Code     : 0 (None)
  Qform Code      : 0 (Unknown)
  Sform Code      : 0 (Unknown)
  Dimension       : 10 x 10 x 10
  Pixel Dimension : 1 x 1 x 1
  Voxel Units     : Unknown
  Time Units      : Unknown
NIfTI-1 format
  Type            : nifti
  Data Type       : 16 (FLOAT32)
  Bits per Pixel  : 32
  Slice Code      : 0 (Unknown)
  Intent Code     : 0 (None)
  Qform Code      : 0 (Unknown)
  Sform Code      : 0 (Unknown)
  Dimension       : 10 x 10 x 10 x 1
  Pixel Dimension : 1 x 1 x 1 x 1
  Voxel Units     : Unknown
  Time Units      : Unknown

neurobase documentation built on May 30, 2017, 4:25 a.m.