Get a NIFTI v2 header extension by code.

Retrieve one header extension from a NIFTI v2 header, by its extension code. See nifti2.extension for details on header extensions.

Usage

nifti2.get.extension(niiheader, ecode)

Arguments

niiheader

named list, a NIFTI v2 header as returned by read.nifti2.header or created by ni2header.template.

ecode

integer, the extension code to search for. The CIFTI2 XML metadata uses code 32L.

Value

the extension (a named list with entries 'ecode' and 'content', see nifti2.extension), or NULL if the header contains no extension with this code.

See also

nifti2.extension.text

Other nifti2 extensions: nifti2.extension(), nifti2.extension.content(), nifti2.extension.size(), nifti2.extension.text()