Relevant features of new R versions

[Bisaloo]

This is a bookmark issue to keep in mind the features we could leverage from the newer R versions in cases we accept to bump the minimum required R version in the future:

Already implemented

• R 3.6.0

  • delayed S3 registration: opens up the possibility of a as.cimg method for rimg objects even though imager is in Suggests
  • use hcl.colors(n, palette = "cividis") instead of viridisLite::cividis(n) (removes the viridisLite dependency): see PR Use new R palette functions to get colours #184

• R 4.0.0

  • don't import plot/plot.default (it's in base and not in graphics anymore)
  • use the palette.colors() function to specify colourblind friendly colour palettes: see PR Use new R palette functions to get colours #184
  • use list2DF() instead of do.call(cbind, ...)

• R 4.1.0

  • Use native pipe |> in examples etc. I like pipes (TW).
  • apply(x, MARGIN, FUN, simplify = FALSE) instead of lapply(seq_len(nrow/ncol(x)), FUN)

• R 4.4.0

  • val <- val %||% default, particularly useful to set defaults to arguments, as in

    pavo/R/segplot.R

    Lines 48 to 62 in a3e3986

    	if (is.null(arg$pch)) {
    	arg$pch <- 19
    	}
    	if (is.null(arg$xlim)) {
    	arg$xlim <- c(-1.05, 1.01)
    	}
    	if (is.null(arg$ylim)) {
    	arg$ylim <- c(-1.05, 1.05)
    	}
    	if (is.null(arg$xlab)) {
    	arg$xlab <- " "
    	}
    	if (is.null(arg$ylab)) {
    	arg$ylab <- " "
    	}

• R 4.5.0

  • grepv():

    pavo/R/bootcoldist.R

    Lines 175 to 177 in 6713103

    	datattributes <- grep("names", names(attributes(vismodeldata)),
    	invert = TRUE, value = TRUE, fixed = TRUE
    	)

Feel free to edit this issue to add more items

[Bisaloo]

Dependency upgrades blocked by minimum R version

• R 4.0.0

  • rgl 0.103.5 (see Use rgl::setupKnitr() function #210)

[Bisaloo]

Just a reminder that bumping the minimum R version should also be the opportunity to remove code added to ensure compatibility with older version (e.g., stringAsFactors(), getRversion() branches, etc.)