calmin-methods: Extract or Replace NIfTI/Analyze Min or Max Values

Description Usage Arguments Methods Author(s) Examples

Description

Methods that act on the ‘cal.min’ and ‘cal.max’ numeric value in the NIfTI or ANALYZE header.

Usage

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## S4 method for signature 'nifti'
cal.min(object)
## S4 method for signature 'nifti'
cal.max(object)

Arguments

object

is an object of class nifti or anlz.

Methods

object = "anlz"

Extract or replace the ANALYZE "cal_min" or "cal_max" value.

object = "nifti"

Extract or replace the NIfTI "cal_min" or "cal_max" value.

Author(s)

Brandon Whitcher bwhitcher@gmail.com

Examples

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## Not run: 
url <- "http://nifti.nimh.nih.gov/nifti-1/data/avg152T1_LR_nifti.nii.gz"
urlfile <- file.path(system.file("nifti", package="oro.nifti"),
                     "mniLR.nii.gz")
download.file(url, urlfile, quiet=TRUE)

## End(Not run)
urlfile <- file.path(system.file("nifti", package="oro.nifti"),
                     "mniLR.nii.gz")
mniLR <- readNIfTI(urlfile)
cal.min(mniLR)
cal.max(mniLR)

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_LR_nifti.nii.gz: cannot open destfile '/usr/lib/R/site-library/oro.nifti/nifti/mniLR.nii.gz', reason 'Permission denied'
2: In download.file(url, urlfile, quiet = TRUE) :
  download had nonzero exit status
[1] 0
[1] 255

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