8  Development Version

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/.

Readers are strongly advised to update their packages from the Comprehensive R Archive Network (CRAN) as frequently as possible.

Listing 8.1: Update packages from CRAN 
utils::update.packages()

To reproduce all examples in this Quarto book (Note 2), readers must install the development versions of

  1. these packages (Listing 8.2, Note 1) from Tingting Zhan’s Github repository;
  2. the spatstat.* family of packages (Listing 8.3) from spatstat Github repository.

by either of following approaches

Listing 8.2: Development versions of Tingting Zhan’s packages 
tzhan. = c(
  'groupedHyperframe', 'groupedHyperframe.random', 
  'hyper.gam', 'maxEff'
)
tzhan = tzhan. |>
  sprintf(fmt = 'tingtingzhan/%s')
Listing 8.3: Development versions of spatstat.* packages (Baddeley and Turner 2005; Baddeley et al. 2015) 
spatstat. = c(
  'spatstat.data', 'spatstat.explore', 'spatstat.geom', 
  'spatstat.linnet', 'spatstat.model', 'spatstat.random',
  'spatstat.sparse', 'spatstat.univar', 'spatstat.utils',
  'spatstat'
)
spatstat = spatstat. |>
  sprintf(fmt = 'spatstat/%s')
Listing 8.4: Install Listing 8.2 and Listing 8.3 using package pak (Csárdi and Hester 2025) 
c(spatstat, tzhan) |>
  lapply(FUN = pak::pak, ask = FALSE)
Listing 8.5: Install Listing 8.2 and Listing 8.3 using package remotes (Csárdi et al. 2024) 
c(spatstat, tzhan) |>
  lapply(FUN = remotes::install_github, upgrade = 'always')

Table 8.1 tracks of the development versions of the spatstat.* family of packages (Listing 8.3) on Github and the stable releases on CRAN.

Table 8.1: Development version of spatstat.* family ahead of CRAN (2026-03-25 14:07:40 EDT)
Package Version on CRAN (Stable) Version on Github (Development) Newer
spatstat 3.5-1 🗓️ 2026-02-01 3.5-1.003 🗓️ 2026-03-23 ⚠
spatstat.data 3.1-9 🗓️ 2025-10-18 3.1-9 🗓️ 2025-10-18
spatstat.explore 3.8-0 🗓️ 2026-03-22 3.8-0 🗓️ 2026-03-22
spatstat.geom 3.7-3 🗓️ 2026-03-23 3.7-3 🗓️ 2026-03-23
spatstat.linnet 3.4-1 🗓️ 2026-01-31 3.4-1.006 🗓️ 2026-03-16 ⚠
spatstat.model 3.6-1 🗓️ 2026-01-29 3.6-1.006 🗓️ 2026-03-16 ⚠
spatstat.random 3.4-5 🗓️ 2026-03-22 3.4-5 🗓️ 2026-03-22
spatstat.sparse 3.1-0 🗓️ 2024-06-21 3.1-0 🗓️ 2024-06-21
spatstat.univar 3.1-7 🗓️ 2026-02-18 3.1-7 🗓️ 2026-02-18
spatstat.utils 3.2-2 🗓️ 2026-03-10 3.2-2 🗓️ 2026-03-10