neurobase: datatype – R documentation

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datatype

Change Data type for img

Tries to figure out the correct datatype for image. Useful for image masks - makes them binary if

datatyper(
  img,
  type_string = NULL,
  datatype = NULL,
  bitpix = NULL,
  trybyte = TRUE,
  warn = TRUE
)

`img`	nifti object (or character of filename)
`type_string`	(NULL) character of datatype and bitpix. Supercedes both datatype and bitpix. If specified `convert.datatype[[type_string]]` and `convert.bitpix[[type_string]]` will be used.
`datatype`	(NULL) character of datatype see `convert.datatype`
`bitpix`	(NULL) character of bitpix see `convert.bitpix`
`trybyte`	(logical) Should you try to make a byte (UINT8) if image in c(0, 1)?
`warn`	Should a warning be issued if defaulting to FLOAT32?

object of type nifti

img = nifti(array(rnorm(10^3, sd = 1000), dim = rep(10, 3)))
rimg = round(img)
newnii(datatyper(rimg))
rimg = datatyper(rimg, type_string= "FLOAT32")

'Neuroconductor' Base Package with Helper Functions for 'nifti' Objects

v1.32.1

GPL-2

Authors

John Muschelli [aut, cre]

Initial release