colortable.from.annot   Extract color lookup table (LUT) from
                        annotation.
delete_all_optional_data
                        Delete all data in the package cache.
download_optional_data
                        Download optional data for the
                        freesurferformats package.
fs.get.morph.file.ext.for.format
                        Determine morphometry file extension from
                        format
fs.get.morph.file.format.from.filename
                        Determine morphometry file format from filename
fs.patch                Constructor for fs.patch
get_optional_data_filepath
                        Access a single file from the package cache by
                        its file name.
is.fs.annot             Check whether object is an fs.annot
is.fs.label             Check whether object is an fs.label
is.fs.surface           Check whether object is an fs.surface
is.fs.volume            Check whether object is an fs.volume
list_optional_data      Get file names available in package cache.
mghheader.centervoxelRAS.from.firstvoxelRAS
                        Compute RAS coords of center voxel.
mghheader.crs.orientation
                        Compute MGH volume orientation string.
mghheader.is.conformed
                        Determine whether an MGH volume is conformed.
mghheader.is.ras.valid
                        Check whether header contains valid ras
                        information
mghheader.primary.slice.direction
                        Compute MGH primary slice direction
mghheader.ras2vox       Compute ras2vox matrix from basic MGH header
                        fields.
mghheader.ras2vox.tkreg
                        Compute ras2vox-tkreg matrix from basic MGH
                        header fields.
mghheader.scanner2tkreg
                        Compute scanner-RAS 2 tkreg-RAS matrix from
                        basic MGH header fields.
mghheader.tkreg2scanner
                        Compute tkreg-RAS to scanner-RAS matrix from
                        basic MGH header fields.
mghheader.update.from.vox2ras
                        Update mghheader fields from vox2ras matrix.
mghheader.vox2ras       Compute vox2ras matrix from basic MGH header
                        fields.
mghheader.vox2ras.tkreg
                        Compute vox2ras-tkreg matrix from basic MGH
                        header fields.
mghheader.vox2vox       Compute vox2vox matrix between two volumes.
print.fs.annot          Print description of a brain atlas or
                        annotation.
print.fs.label          Print description of a brain surface label.
print.fs.patch          Print description of a brain surface patch.
print.fs.surface        Print description of a brain surface.
print.fs.volume         Print description of a brain volume.
read.fs.annot           Read file in FreeSurfer annotation format
read.fs.colortable      Read colortable file in FreeSurfer ASCII LUT
                        format.
read.fs.curv            Read file in FreeSurfer curv format
read.fs.label           Read file in FreeSurfer label format
read.fs.mgh             Read file in FreeSurfer MGH or MGZ format
read.fs.morph           Read morphometry data file in any FreeSurfer
                        format.
read.fs.patch           Read FreeSurfer binary or ASCII patch file.
read.fs.patch.asc       Read FreeSurfer ASCII format patch.
read.fs.surface         Read file in FreeSurfer surface format
read.fs.surface.asc     Read FreeSurfer ASCII format surface.
read.fs.surface.vtk     Read VTK ASCII format mesh as surface.
read.fs.weight          Read file in FreeSurfer weight or w format
read_nisurface          Read a surface, based on the file path without
                        extension.
read_nisurfacefile      S3 method to read a neuroimaging surface file.
read_nisurfacefile.fsascii
                        Read a FreeSurfer ASCII surface file.
read_nisurfacefile.fsnative
                        Read a FreeSurfer ASCII surface file.
read_nisurfacefile.gifti
                        Read a gifti file as a surface.
write.fs.annot          Write annotation to binary file.
write.fs.colortable     Write colortable file in FreeSurfer ASCII LUT
                        format.
write.fs.curv           Write file in FreeSurfer curv format
write.fs.label          Write vertex indices to file in FreeSurfer
                        label format
write.fs.mgh            Write file in FreeSurfer MGH or MGZ format
write.fs.morph          Write morphometry data in a format derived from
                        the given file name (the file extension).
write.fs.patch          Write a surface patch
write.fs.surface        Write mesh to file in FreeSurfer binary surface
                        format
write.fs.surface.asc    Write mesh to file in FreeSurfer ASCII surface
                        format
write.fs.surface.vtk    Write mesh to file in VTK ASCII format
write.fs.weight         Write file in FreeSurfer weight format
