read.fs.label.gii

Read a label from a GIFTI label/annotation file.

Provides functions to read and write neuroimaging data in various file formats, with a focus on 'FreeSurfer' <http://freesurfer.net/> formats. This includes, but is not limited to, the following file formats: 1) MGH/MGZ 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

read.fs.label.gii function

<dl><dt>filepath</dt>
<dd>string. Full path to the input label file.</dd>
<dt>label_value</dt>
<dd>integer, the label value of interest to extract from the annotation: the indices of the vertices with this value will be returned. See the note for details.. It is important to set this correctly, otherwise you may accidently load the vertices which are *not* part of the label.</dd>
<dt>element_index</dt>
<dd>positive integer, the index of the data array to return. Ignored unless the file contains several data arrays.</dd></dl>

Arguments

Read a label from a GIFTI label/annotation file. — read.fs.label.gii

<dl>

<dt>filepath</dt>
<dd>string. Full path to the input label file.</dd>


<dt>label_value</dt>
<dd>integer, the label value of interest to extract from the annotation: the indices of the vertices with this value will be returned. See the note for details.. It is important to set this correctly, otherwise you may accidently load the vertices which are *not* part of the label.</dd>


<dt>element_index</dt>
<dd>positive integer, the index of the data array to return. Ignored unless the file contains several data arrays.</dd>

</dl>

read.fs.label.gii: Read a label from a GIFTI label/annotation file.

Description

Usage

Value

Arguments

See Also