Please attend to retirement of rgdal, rgeos and maptools

[rsbivand]

See: https://r-spatial.org/r/2022/04/12/evolution.html. sp on CRAN now offers control of the environment variable, so the attached log is from _SP_EVOLUTION_STATUS_=2 _R_CHECK_FORCE_SUGGESTS_=FALSE R CMD check RFmerge_0.1-10.tar.gz:
00check.log

[rsbivand]

This package depends on (depends, imports or suggests) raster and one or more of the retiring packages rgdal, rgeos or maptools (https://r-spatial.org/r/2022/04/12/evolution.html, https://r-spatial.org/r/2022/12/14/evolution2.html). Since raster 3.6.3, all use of external FOSS library functionality has been transferred to terra, making the retiring packages very likely redundant. It would help greatly if you could remove dependencies on the retiring packages as soon as possible.

Note new blog. Best to be completed by June 2023 to allow time for testing, final deadline likely October 2023.