Found the following significant warnings:
  Rd warning: /home/hornik/tmp/scratch/RtmpsCXmKI/R.INSTALL4f6d36e0fe93/sppmix/man/plot_avgsurf.Rd:89: file link ‘ggtitle’ in package ‘ggplot2’ does not exist and so has been treated as a topic
  Rd warning: /home/hornik/tmp/scratch/RtmpsCXmKI/R.INSTALL4f6d36e0fe93/sppmix/man/rGRF.Rd:61: file link ‘matern.image.cov’ in package ‘fields’ does not exist and so has been treated as a topic
  Rd warning: /home/hornik/tmp/scratch/RtmpsCXmKI/R.INSTALL4f6d36e0fe93/sppmix/man/rGRF.Rd:100: file link ‘ggtitle’ in package ‘ggplot2’ does not exist and so has been treated as a topic
  Rd warning: /home/hornik/tmp/scratch/RtmpsCXmKI/R.INSTALL4f6d36e0fe93/sppmix/man/sppmix.Rd:112: file link ‘spatstat’ in package ‘spatstat’ does not exist and so has been treated as a topic
  Rd warning: /home/hornik/tmp/scratch/RtmpsCXmKI/R.INSTALL4f6d36e0fe93/sppmix/man/sppmix.Rd:112: file link ‘rgl’ in package ‘rgl’ does not exist and so has been treated as a topic
  Rd warning: /home/hornik/tmp/scratch/RtmpsCXmKI/R.INSTALL4f6d36e0fe93/sppmix/man/sppmix.Rd:114: file link ‘Rcpp’ in package ‘Rcpp’ does not exist and so has been treated as a topic
  Rd warning: /home/hornik/tmp/scratch/RtmpsCXmKI/R.INSTALL4f6d36e0fe93/sppmix/man/sppmix.Rd:114: file link ‘RcppArmadillo’ in package ‘RcppArmadillo’ does not exist and so has been treated as a topic
  Rd warning: /home/hornik/tmp/scratch/RtmpsCXmKI/R.INSTALL4f6d36e0fe93/sppmix/man/sppmix.Rd:118: file link ‘spatstat’ in package ‘spatstat’ does not exist and so has been treated as a topic
  Rd warning: /home/hornik/tmp/scratch/RtmpsCXmKI/R.INSTALL4f6d36e0fe93/sppmix/man/sppmix.Rd:122: file link ‘Rcpp’ in package ‘Rcpp’ does not exist and so has been treated as a topic
  Rd warning: /home/hornik/tmp/scratch/RtmpsCXmKI/R.INSTALL4f6d36e0fe93/sppmix/man/sppmix.Rd:122: file link ‘RcppArmadillo’ in package ‘RcppArmadillo’ does not exist and so has been treated as a topic
  Rd warning: /home/hornik/tmp/scratch/RtmpsCXmKI/R.INSTALL4f6d36e0fe93/sppmix/man/sppmix.Rd:126: file link ‘rgl’ in package ‘rgl’ does not exist and so has been treated as a topic
See ‘/home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/sppmix.Rcheck/00install.out’ for details.