cflush: 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 'savePlot'
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
  savePlot sd write.table
Consider adding
  importFrom("grDevices", "as.raster", "dev.new", "dev.off", "rgb",
             "savePlot")
  importFrom("stats", "logLik", "rnorm", "sd")
  importFrom("utils", "flush.console", "read.table", "write.table")
to your NAMESPACE file.