Invalid MIT-MAGIC-COOKIE-1 keycflush: no visible global function definition for ‘flush.console’
dec: no visible global function definition for ‘rgb’
estimate.vmf.lines: no visible global function definition for ‘logLik’
estimate.vmf.lines: no visible global function definition for ‘rgb’
gdi.vmf: no visible global function definition for ‘logLik’
gqi.odfpeaklines: no visible global function definition for ‘rgb’
gqi.odfvmf: no visible global function definition for ‘logLik’
gqi.odfvmflines: no visible global function definition for ‘logLik’
gqi.odfvmflines: no visible global function definition for ‘rgb’
gqi.odfvxgrid: no visible global function definition for ‘rgb’
plotglyph: no visible global function definition for ‘rgb’
plotodfvmf: no visible global function definition for ‘logLik’
plotodfvmf: no visible global function definition for ‘rgb’
plotodfvxgrid: no visible global function definition for ‘rgb’
premask: no visible global function definition for ‘sd’
readtable: no visible global function definition for ‘read.table’
rgbvolmap: no visible global function definition for ‘as.raster’
rgbvolmap: no visible global function definition for ‘dev.new’
rgbvolmap: no visible global function definition for ‘dev.off’
s2tessel.zorder: no visible global function definition for
  ‘write.table’
simul.fandtasiaSignal: no visible global function definition for
  ‘rnorm’
sph.odfpeaklines: no visible global function definition for ‘rgb’
sph.odfvmf: no visible global function definition for ‘logLik’
sph.odfvmflines: no visible global function definition for ‘logLik’
sph.odfvmflines: no visible global function definition for ‘rgb’
sph.odfvxgrid: no visible global function definition for ‘rgb’
synthfiberss2z: no visible global function definition for ‘rnorm’
Undefined global functions or variables:
  as.raster dev.new dev.off flush.console logLik read.table rgb rnorm
  sd write.table
Consider adding
  importFrom("grDevices", "as.raster", "dev.new", "dev.off", "rgb")
  importFrom("stats", "logLik", "rnorm", "sd")
  importFrom("utils", "flush.console", "read.table", "write.table")
to your NAMESPACE file.