FindIsolated: FindIsolated

In LabourMarketAreas: Identification, Tuning, Visualisation and Analysis of Labour Market Areas

FindIsolated

Description

A labour market area is defined as isolated when there are no (spatial) neighbours or there is a unique community inside it. A polygon is defined as isolated when there are no (spatial) neighbours (e.g. a small island which is part of a community in the main land is isolated). This function identifies the isolated labour market areas and their isolated polygons. The contiguity between two objects (labour market areas or polygons) is based on spatial relationships, not on their commuting flows.

Usage

FindIsolated(lma,lma_shp=NULL,lma_shp_path,
lma_shp_name,com_shp=NULL,com_shp_path,
com_shp_name, id_com)

Arguments

lma	List (three components) containing all defining information on the labour market areas. See findClusters function. The names of the lma have already been assigned (see AssignLmaName).
lma_shp	object of class sf corresponding to the labour market areas. See function CreateLmaShape. Defaults to NULL.
lma_shp_path	character. The path where the shape files of the labour market areas are saved. See function CreateLmaShape. Defaults to NULL.
lma_shp_name	character. The file name where the shape files of the labour market areas are saved. See function CreateLmaShape. Defaults to NULL.
com_shp	object of class sf corresponding to the communities. Defaults to NULL.
com_shp_path	character. The path where the shape files of the communities are saved. Defaults to NULL.
com_shp_name	character. The file name where the shape files of the communities are saved. Defaults to NULL.
id_com	character. The field name of the variable containing the community ID in the communities object of class sf.

Value

A list of two components.

isolated.lma

A list of three components: contig.matrix.lma, lma.unique and lma.nolink.

contig.matrix.lma: matrix. The contiguity matrix of the given labour market areas.

lma.unique: data.table. It has two columns: lma.unique.ID and lma.unique.name. lma.unique.ID: integer, the identifier of the unique labour market areas. lma.unique.name: character, name of the unique labour market area. The unique areas are the areas with a unique community.

lma.nolink data.table with two columns: lma.nolink.ID and lma.nolink.name. lma.nolink.ID integer, the identifier of the labour market area with no links. lma.nolink.name: character, the name of the labour market area with no links.

isolated.poly

A list of three components: contig.matrix.poly, poly.com.linkage and poly.nolink.

contig.matrix.poly: matrix. It is the contiguity matrix of the polygons.

poly.com.linkage data.table with two columns, community and Polygon. It represents the association between communities and polygons.

poly.nolink: data.table with two colums: poly.nolink.ID and poly.nolink.name. poly.nolink.ID integer: the identifiers of the no-linked polygons. poly.nolink.name character: the name of the labour market area with no-linked polygons.

Author(s)

Daniela Ichim, Luisa Franconi

See Also

findClusters, CreateLmaShape

LabourMarketAreas documentation built on Oct. 10, 2023, 5:07 p.m.