finite_img-methods: Finite Image

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

Description

Simple wrapper for setting non-finite values to zero

Usage

finite_img(img, replace = 0)

## S4 method for signature 'nifti'
finite_img(img, replace = 0)

## S4 method for signature 'array'
finite_img(img, replace = 0)

## S4 method for signature 'ANY'
finite_img(img, replace = 0)

## S4 method for signature 'character'
finite_img(img, replace = 0)

## S4 method for signature 'list'
finite_img(img, replace = 0)

Arguments

img	character path of image or an object of class nifti, or list of images
replace	Value to replace non-finite values to

Value

nifti object

Author(s)

John Muschelli [e-mail]

Examples

set.seed(5)
dims = rep(10, 3)
arr = array(rpois(prod(dims), lambda = 2), dim = dims)
arr[c(5, 6, 7, 8)] = c(NA, NaN, Inf, -Inf)
nim = nifti(arr)
finite_img(nim)
finite_img(arr)
tfile = tempimg(nim)
checkimg(c(tfile, tfile))
checkimg(list(tfile, tfile))
finite_img(list(tfile, tfile))
finite_img(c(tfile, tfile))
img = RNifti::readNifti(tfile)
checkimg(img)
img[c(5, 6, 7, 8)] = c(NA, NaN, Inf, -Inf)
stopifnot(!any(c(is.na(c(finite_img(img))))))

neuroconductor/neurobase documentation built on May 19, 2021, 5:24 a.m.