30  listof

ImportantDisclaimer

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Package stats (R version 4.5.3 (2026-03-11)) defines an S3 class 'listof'. Listing 30.1 summarizes the S3 methods for the class 'listof' in the spatstat.* family of packages,

Listing 30.1: S3 methods spatstat.*::*.listof
Code 
library(spatstat)
.S3methods(class = 'listof', all.names = TRUE) |> 
  attr(which = 'info', exact = TRUE) |>
  subset.data.frame(subset = grepl(pattern = '^spatstat\\.', x = from))
#                      visible             from       generic  isS4
# [<-.listof              TRUE    spatstat.geom           [<- FALSE
# as.hyperframe.listof    TRUE    spatstat.geom as.hyperframe FALSE
# as.layered.listof       TRUE    spatstat.geom    as.layered FALSE
# contour.listof          TRUE    spatstat.geom       contour FALSE
# image.listof            TRUE    spatstat.geom         image FALSE
# pairs.listof            TRUE spatstat.explore         pairs FALSE
# plot.listof             TRUE    spatstat.geom          plot FALSE
# summary.listof          TRUE    spatstat.geom       summary FALSE
Note

The examples in Chapter 30

library(groupedHyperframe)

30.1 Cumulative Average Vertical Height of Trapzoidal Integration

The S3 method visualize_vtrapz.listof() (Section 11.3, Table 11.2)

  1. applies the generic function visualize_vtrapz() to each member of the input list;
  2. collages all plots using package patchwork (Pedersen 2025, v1.3.2, MIT + file LICENSE).

Examples of the S3 method visualize_vtrapz.listof() include cases where the input is,