clusteroverlay_from_threshmap: Compute overlayID map from thresholded statmap (clustermap).

In dfsp-spirit/brainloc: Find Region Names and Coordinates for a Point on the Human Brain

Description

This uses breadth-first search on the graph of the mesh to identify all connected cluster values and identify the separate clusters. Different clusters must not touch for this to work (if they do, there is no reliable way to obtain the clusters from the thresholded map). Clusters can have holes.

Usage

clusteroverlay_from_threshmap(threshmap, value_thresholded, surface)

Arguments

value_thresholded	scalar double, the data value of thresholded vertices in the lh_threshmap and rh_threshmap.
surface	a single fs.surface instance, used for neighborhood computation.
theshmap	double vector, the stats map. Typically a thresholded t-value map (cluster map). Must have one value per vertex. The value assigned to vertices that have been removed by the thresholding can be set with parameter 'value_thresholded'.

Value

integer vector, the clusterID overlay.

Note

This visits every node and edge in the mesh/graph exactly once.

dfsp-spirit/brainloc documentation built on Jan. 28, 2022, 12:25 p.m.