Found the following significant warnings:
  Rd warning: /tmp/RtmpRC6NRu/R.INSTALL47fa3b139659/plotfunctions/man/alphaPalette.Rd:54: file link ‘colorRampPalette’ in package ‘grDevices’ does not exist and so has been treated as a topic
  Rd warning: /tmp/RtmpRC6NRu/R.INSTALL47fa3b139659/plotfunctions/man/color_contour.Rd:51: file link ‘rainbow’ in package ‘grDevices’ does not exist and so has been treated as a topic
  Rd warning: /tmp/RtmpRC6NRu/R.INSTALL47fa3b139659/plotfunctions/man/color_contour.Rd:51: file link ‘heat.colors’ in package ‘grDevices’ does not exist and so has been treated as a topic
  Rd warning: /tmp/RtmpRC6NRu/R.INSTALL47fa3b139659/plotfunctions/man/color_contour.Rd:52: file link ‘topo.colors’ in package ‘grDevices’ does not exist and so has been treated as a topic
  Rd warning: /tmp/RtmpRC6NRu/R.INSTALL47fa3b139659/plotfunctions/man/color_contour.Rd:53: file link ‘terrain.colors’ in package ‘grDevices’ does not exist and so has been treated as a topic
  Rd warning: /tmp/RtmpRC6NRu/R.INSTALL47fa3b139659/plotfunctions/man/getRange.Rd:13: file link ‘round’ in package ‘base’ does not exist and so has been treated as a topic
  Rd warning: /tmp/RtmpRC6NRu/R.INSTALL47fa3b139659/plotfunctions/man/group_sort.Rd:22: file link ‘sort.list’ in package ‘base’ does not exist and so has been treated as a topic
  Rd warning: /tmp/RtmpRC6NRu/R.INSTALL47fa3b139659/plotfunctions/man/group_sort.Rd:35: file link ‘sort.list’ in package ‘base’ does not exist and so has been treated as a topic
  Rd warning: /tmp/RtmpRC6NRu/R.INSTALL47fa3b139659/plotfunctions/man/plotsurface.Rd:63: file link ‘rainbow’ in package ‘grDevices’ does not exist and so has been treated as a topic
  Rd warning: /tmp/RtmpRC6NRu/R.INSTALL47fa3b139659/plotfunctions/man/plotsurface.Rd:64: file link ‘heat.colors’ in package ‘grDevices’ does not exist and so has been treated as a topic
  Rd warning: /tmp/RtmpRC6NRu/R.INSTALL47fa3b139659/plotfunctions/man/plotsurface.Rd:65: file link ‘topo.colors’ in package ‘grDevices’ does not exist and so has been treated as a topic
  Rd warning: /tmp/RtmpRC6NRu/R.INSTALL47fa3b139659/plotfunctions/man/plotsurface.Rd:66: file link ‘terrain.colors’ in package ‘grDevices’ does not exist and so has been treated as a topic
See ‘/home/hornik/tmp/R.check/r-patched-gcc/Work/PKGS/plotfunctions.Rcheck/00install.out’ for details.