analyze.pair.files

The two formats ANALYZE 7.5 and NIFTI v1 (in its two-file variant) store the image in a header file
(<code>&lt;base&gt;.hdr</code>) and a data file (<code>&lt;base&gt;.img</code>). This function computes the two file names from any of them, so
that the user can pass any of the possible spellings.

internal

Provides functions to read and write neuroimaging data in various file formats, with a focus on 'FreeSurfer' formats. This includes, but is not limited to, the following file formats: 1) MGH/MGZ/NIFTI format files, which can contain multi-dimensional images or other data. Typically they contain time-series of three-dimensional brain scans acquired by magnetic resonance imaging (MRI). They can also contain vertex-wise measures of surface morphometry data. The MGH format is named after the Massachusetts General Hospital, and the MGZ format is a compressed version of the same format. 2) 'FreeSurfer' morphometry data files in binary 'curv' format. These contain vertex-wise surface measures, i.e., one scalar value for each vertex of a brain surface mesh. These are typically values like the cortical thickness or brain surface area at each vertex. 3) Annotation file format. This contains a brain surface parcellation derived from a cortical atlas. 4) Surface file format. Contains a brain surface mesh, given by a list of vertices and a list of faces.

Tim Schc3<a4>fer

freesurferformats

Read and Write 'FreeSurfer' Neuroimaging File Formats

Tim Schäfer

Van Essen Lab 

Montreal Neurological Institute (MNI) 

analyze.pair.files function

<dl><dt>filepath</dt>
<dd>character string, the path to the header file, to the data file, or to the base name (with or
without a <code>.hdr</code>/<code>.img</code>/<code>.gz</code> suffix).</dd>
<dt>require_header</dt>
<dd>logical, whether to stop with an error if the header file does not exist. If <code>FALSE</code>, the
computed file names are returned even if the files are missing.</dd></dl>

Arguments

Determine the header and data file of an ANALYZE 7.5 or NIFTI v1 pair file. — analyze.pair.files

<dl>

<dt>filepath</dt>
<dd>character string, the path to the header file, to the data file, or to the base name (with or
without a <code>.hdr</code>/<code>.img</code>/<code>.gz</code> suffix).</dd>


<dt>require_header</dt>
<dd>logical, whether to stop with an error if the header file does not exist. If <code>FALSE</code>, the
computed file names are returned even if the files are missing.</dd>

</dl>

analyze.pair.files: Determine the header and data file of an ANALYZE 7.5 or NIFTI v1 pair file.

Description

Usage

Value

Arguments