.read.numeric.table

Low-level parser shared by all gradient table readers. Values
may be separated by spaces, tabs or commas, and both blank lines and lines
starting with <code>#</code> are ignored. All remaining lines must contain the same
number of values.

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) 

.read.numeric.table function

<dl><dt>filepath</dt>
<dd>character string, path to the file. Gzip-compressed files
are detected by their magic bytes, not by the file name.</dd>
<dt>allow_count_header</dt>
<dd>logical, whether a first line that consists of a
single integer may be interpreted as a count header and dropped. Only the
MRtrix gradient table reader enables this, because the historical
<code>.grad</code>/<code>.b</code> files may start with the number of volumes.</dd></dl>

Arguments

Read a whitespace-separated numeric table from a text file. — .read.numeric.table

<dl>

<dt>filepath</dt>
<dd>character string, path to the file. Gzip-compressed files
are detected by their magic bytes, not by the file name.</dd>


<dt>allow_count_header</dt>
<dd>logical, whether a first line that consists of a
single integer may be interpreted as a count header and dropped. Only the
MRtrix gradient table reader enables this, because the historical
<code>.grad</code>/<code>.b</code> files may start with the number of volumes.</dd>

</dl>

.read.numeric.table: Read a whitespace-separated numeric table from a text file.

Description

Usage

Value

Arguments