55  ppplist

ImportantDisclaimer

These packages (Note 1) are a one-person project undergoing rapid evolution. Backward compatibility (per Hadley Wickham) is provided as a courtesy rather than a guarantee.

Until further notice, these packages should

  • not be used as a basis for research grant applications,
  • not be cited as an actively maintained tool in a peer-reviewed manuscript,
  • not be used to support or fulfill requirements for pursuing an academic degree.

In addition, work primarily based on these packages (Note 1) should not be presented at academic conferences or similar scholarly venues.

Furthermore, a person’s ability to use these packages (Note 1) does not necessarily imply an understanding of their underlying mechanisms. Accordingly, demonstration of their use alone should not be considered sufficient evidence of expertise, nor should it be credited as a basis for academic promotion or advancement.

These statements do not apply to the contributors (Tip 1) to these packages (Note 1) with respect to their specific contributions.

These statements do not apply when the maintainer of these packages (Note 1), Tingting Zhan, is credited as the first author, the lead author, and/or the corresponding author in a peer-reviewed manuscript, or as the Principal Investigator or Co-Principal Investigator in a research grant application and/or a final research progress report.

These statements are advisory in nature and do not modify or restrict the rights granted under the GNU General Public License https://www.r-project.org/Licenses/.

Chapter 55 outlines the S3 methods currently not planned for the class 'ppplist' (Chapter 37).

55.1 unmark()

The author does not implement an S3 method of the generic function unmark() to a ppplist, despite the existence of the S3 method spatstat.geom::unmark.splitppp() that is de facto deprecated (email from Dr. Baddeley, 2025-10-05).

Listing 55.1: Workaround: 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