cifti.region.name.without.hemisphere: Remove hemisphere markers from region names of a...
In freesurferformats: Read and Write 'FreeSurfer' Neuroimaging File Formats
View source: R/cifti_parcels.R
cifti.region.name.without.hemisphere R Documentation
Remove hemisphere markers from region names of a parcellation.
Description
Region names of brain atlases often carry a marker that identifies the
hemisphere a region belongs to, e.g. L_superiorfrontal / R_superiorfrontal,
pericalcarine_LH / pericalcarine_RH, or 7Networks_LH_Vis_1 /
7Networks_RH_Vis_1. The same region of the two hemispheres has to be recognized as
one parcel when building a parcel axis for a CIFTI-2 file, so these markers are
removed here.
A marker that is removed is one of L, R, LH, RH, Left or Right (matched
case-insensitively), at the start of the name or at its end, followed or preceded by
_ or -, or enclosed by two separators anywhere in the name (in which case the two
separators collapse into one). Names without such a marker are returned unchanged, and
so are names that consist of nothing but a marker.
Usage
cifti.region.name.without.hemisphere(region_names)
Arguments
region_names
character vector, the region names.
Value
character vector, the names without hemisphere markers.
freesurferformats documentation built on Sept. 25, 2026, 1:07 a.m.
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View source: R/cifti_parcels.R
| cifti.region.name.without.hemisphere | R Documentation |
Remove hemisphere markers from region names of a parcellation.
Description
Region names of brain atlases often carry a marker that identifies the
hemisphere a region belongs to, e.g. L_superiorfrontal / R_superiorfrontal,
pericalcarine_LH / pericalcarine_RH, or 7Networks_LH_Vis_1 /
7Networks_RH_Vis_1. The same region of the two hemispheres has to be recognized as
one parcel when building a parcel axis for a CIFTI-2 file, so these markers are
removed here.
A marker that is removed is one of L, R, LH, RH, Left or Right (matched
case-insensitively), at the start of the name or at its end, followed or preceded by
_ or -, or enclosed by two separators anywhere in the name (in which case the two
separators collapse into one). Names without such a marker are returned unchanged, and
so are names that consist of nothing but a marker.
Usage
cifti.region.name.without.hemisphere(region_names)
Arguments
region_names |
character vector, the region names. |
Value
character vector, the names without hemisphere markers.
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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