vertices_to_parcels: Aggregate vertex data into parcels

In neuromapr: Spatial Null Models and Transforms for Brain Map Comparison

Aggregate vertex data into parcels

Description

Summarises vertex-level data by parcellation labels.

Usage

vertices_to_parcels(data, labels, summary_func = mean)

Arguments

data	Numeric vector of vertex-level values.
labels	Integer vector of parcel labels. 0 and NA are treated as medial wall and excluded.
summary_func	Function to summarise each parcel (default: mean).

Value

Named numeric vector of parcel-level values.

References

Markello RD et al. (2022) Nature Methods 19:1472-1480. doi:10.1038/s41592-022-01625-w

Examples

data <- c(1.0, 2.0, 3.0, 4.0)
labels <- c(1L, 1L, 2L, 2L)
vertices_to_parcels(data, labels)

neuromapr documentation built on Feb. 27, 2026, 5:08 p.m.