This a wrapper around st_read(system.file("gpkg/mtq.gpkg", package = "mapsf"), layer = x, quiet = TRUE).
For polygons (municipalities shapes) and points (municipalities centroids)
INSEE_COM: Municipality identifier
STATUS: Municipality administrative status
LIBGEO: Municipality name
POP: Total population, 2015
MED: Median disposable income adjusted per equivalent household member, in euros, 2015
CHOM: Unemployed population, 2015
ACT: Active population, 2015
For lines (professional mobility flows from Fort-de-France to other municipalities)
i: Municipality of residence identifier
j: Municipality of workplace identifier
fij: Flows of workers (employed population, 15 y.o. or more, 2015, only flows \> 100)
sj: Administrative status of the workplace municipality