unmark a ppplist
spatstat.data::btb.extra |>
spatstat.geom::solapply(FUN = spatstat.geom::unmark.ppp)
# List of point patterns
#
# full:
# Planar point pattern: 919 points
# window: polygonal boundary
# enclosing rectangle: [133.5147, 246.0193] x [10.88514, 118.7298] km
#
# standard:
# Planar point pattern: 873 points
# window: polygonal boundary
# enclosing rectangle: [133.5147, 246.0193] x [10.88514, 118.7298] km