draw.clust: no visible global function definition for ‘par’
draw.clust: no visible global function definition for ‘plot.new’
draw.clust: no visible global function definition for ‘rainbow’
draw.clust: no visible global function definition for ‘points’
draw.clust: no visible global function definition for ‘text.default’
draw.clust: no visible global function definition for ‘lines’
draw.tree: no visible global function definition for ‘par’
draw.tree: no visible global function definition for ‘plot.new’
draw.tree: no visible global function definition for ‘rainbow’
draw.tree: no visible global function definition for ‘text.default’
draw.tree: no visible global function definition for ‘lines’
draw.tree: no visible global function definition for ‘points’
group.clust: no visible global function definition for ‘as.hclust’
kgs : spread: no visible global function definition for ‘combn’
kgs: no visible global function definition for ‘as.hclust’
map.groups: no visible global function definition for ‘par’
map.groups: no visible global function definition for ‘plot.new’
map.groups: no visible global function definition for ‘plot.window’
map.groups: no visible global function definition for ‘rainbow’
map.groups: no visible global function definition for ‘polygon’
map.groups: no visible global function definition for ‘points’
map.key: no visible global function definition for ‘par’
map.key: no visible global function definition for ‘rainbow’
map.key: no visible global function definition for ‘points’
map.key: no visible global function definition for ‘text’
ngon: no visible global function definition for ‘par’
ngon: no visible global function definition for ‘polygon’
ngon: no visible global function definition for ‘lines’
Undefined global functions or variables:
  as.hclust combn lines par plot.new plot.window points polygon rainbow
  text text.default
Consider adding
  importFrom("grDevices", "rainbow")
  importFrom("graphics", "lines", "par", "plot.new", "plot.window",
             "points", "polygon", "text", "text.default")
  importFrom("stats", "as.hclust")
  importFrom("utils", "combn")
to your NAMESPACE file.