getTopFeatures {alcyon}

Extract top x percent of features

Description

Sorts features by a specific column and extracts the top x percent

Usage

getTopFeatures(lineStringMap, column, percent)

Arguments

lineStringMap

An sf lineString map

column

The column to use to extract the features from

percent

Percentage of features (to total) to extract

Value

The lineString map filtered and sorted

Examples

mifFile <- system.file(
    "extdata", "testdata", "barnsbury",
    "barnsbury_small_axial_original.mif",
    package = "alcyon"
  )
  sfMap <- st_read(mifFile,
    geometry_column = 1L, quiet = TRUE
  )
  shapeGraph <- as(sfMap, "AxialShapeGraph")
shapeGraph <- allToAllTraverse(
  shapeGraph,
  traversalType = TraversalType$Topological,
  radii = c("n", "3"),
  includeBetweenness = TRUE
)
getTopFeatures(shapeGraph, "Connectivity", 0.1)