parcels_to_vertices: Map parcel data back to vertices

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

Map parcel data back to vertices

Description

Expands parcel-level values to a vertex-level vector using parcellation labels.

Usage

parcels_to_vertices(parcel_data, labels, fill = NA_real_)

Arguments

parcel_data	Named numeric vector of parcel values (names match labels).
labels	Integer vector of parcel labels. 0 and NA are medial wall.
fill	Value for medial wall vertices (default: NA_real_).

Value

Numeric vector of length(labels).

References

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

Examples

parcel_data <- c("1" = 10, "2" = 20)
labels <- c(1L, 1L, 2L, 2L, 0L)
parcels_to_vertices(parcel_data, labels)

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