filled.contour.poly: no visible global function definition for 'par'
filled.contour.poly: no visible global function definition for 'layout'
filled.contour.poly: no visible global function definition for 'lcm'
filled.contour.poly: no visible global function definition for
  'plot.new'
filled.contour.poly: no visible global function definition for
  'plot.window'
filled.contour.poly: no visible global function definition for 'rect'
filled.contour.poly: no visible global function definition for 'axis'
filled.contour.poly: no visible global function definition for 'box'
filled.contour.poly: no visible global function definition for
  '.filled.contour'
filled.contour.poly: no visible global function definition for 'title'
filled.contour.poly: no visible global function definition for
  'contour'
filled.contour.poly: no visible global function definition for
  'polygon'
mcpat.test: no visible global function definition for 'runif'
metre: no visible global function definition for 'rect'
metre: no visible global function definition for 'text'
plotcv: no visible global function definition for 'plot'
plotmc: no visible global function definition for 'plot'
plotmc: no visible global function definition for 'image'
plotmc: no visible global function definition for 'contour'
plotmc: no visible global function definition for 'polygon'
plotmc: no visible global function definition for 'points'
plotphat: no visible global function definition for 'plot'
plotphat: no visible global function definition for 'image'
plotphat: no visible global function definition for 'polygon'
plotphat: no visible global function definition for 'points'
risk.colors: no visible global function definition for 'rgb'
risk.colors: no visible global function definition for 'rainbow'
risk.colors: no visible global function definition for 'hsv'
Undefined global functions or variables:
  .filled.contour axis box contour hsv image layout lcm par plot
  plot.new plot.window points polygon rainbow rect rgb runif text title
Consider adding
  importFrom("grDevices", "hsv", "rainbow", "rgb")
  importFrom("graphics", ".filled.contour", "axis", "box", "contour",
             "image", "layout", "lcm", "par", "plot", "plot.new",
             "plot.window", "points", "polygon", "rect", "text", "title")
  importFrom("stats", "runif")
to your NAMESPACE file.