aux_file-methods: Extract or Replace NIfTI/Analyze Auxiliary File

In oro.nifti: Rigorous - NIfTI+ANALYZE+AFNI Input / Output

Description

Methods that act on the “auxiliary file” character string in the NIfTI or Analyze header.

Usage

## S4 method for signature 'nifti'
aux.file(object)
## S4 method for signature 'anlz'
aux.file(object)

Arguments

object

is an object of class nifti or anlz.

Methods

object = "anlz"

Extract or replace Analyze auxiliary file.

object = "nifti"

Extract or replace NIfTI auxiliary file.

Author(s)

Brandon Whitcher [e-mail]

Examples

## Not run: 
url <- "http://nifti.nimh.nih.gov/nifti-1/data/avg152T1_RL_nifti.nii.gz"
urlfile <- file.path(system.file("nifti", package="oro.nifti"),
                     "mniRL.nii.gz")
download.file(url, urlfile, quiet=TRUE)

## End(Not run)
options("niftiAuditTrail"=FALSE)

urlfile <- file.path(system.file("nifti", package="oro.nifti"),
                     "mniRL.nii.gz")
mniRL <- readNIfTI(urlfile)
aux.file(mniRL)
aux.file(mniRL) <- "avg152T1_RL_nifti"
aux.file(mniRL)

Example output

oro.nifti 0.9.1
Warning messages:
1: In download.file(url, urlfile, quiet = TRUE) :
  URL http://nifti.nimh.nih.gov/nifti-1/data/avg152T1_RL_nifti.nii.gz: cannot open destfile '/usr/lib/R/site-library/oro.nifti/nifti/mniRL.nii.gz', reason 'Permission denied'
2: In download.file(url, urlfile, quiet = TRUE) :
  download had nonzero exit status
[1] "none                   "
[1] "avg152T1_RL_nifti"

oro.nifti documentation built on May 2, 2019, 5:26 p.m.