subject.num.verts: Get subjects vertex count.

In dfsp-spirit/nitools: Managing and Visualizing Brain Surface Data

Get subjects vertex count.

Description

Determine vertex counts for the brain meshes of a subject.

Usage

subject.num.verts(
  subjects_dir,
  subject_id,
  surface = "white",
  hemi = "both",
  do_sum = FALSE
)

Arguments

subjects_dir	string. The FreeSurfer SUBJECTS_DIR, i.e., a directory containing the data for all your subjects, each in a subdir named after the subject identifier.
subject_id	string. The subject identifier
surface	string. The surface name. E.g., "white", or "pial". Used to construct the name of the surface file to be loaded.
hemi	string, one of 'lh', 'rh', or 'both'. The hemisphere name. Used to construct the names of the surface file to be loaded. For 'both', see the information on the return value.
do_sum	logical, whether to return the sum of the vertex counts for lh and rh. Ignored unless 'hemi' is 'both'. If set, a single scalar will be returned.

Value

hemilist of integers, the vertex count. If hemi is 'both' and 'do_sum' is 'FALSE', a hemilist of integers is returned. Otherwise, a single integer.

dfsp-spirit/nitools documentation built on Jan. 26, 2024, 8:24 p.m.