exportPattern("^[[:alpha:]]+")
  importFrom("grDevices", "colorRamp", "hsv", "rgb")
  importFrom("graphics", "points", "polygon", "title")
  importFrom("stats", "nlm", "weighted.mean")
  importFrom("grid", "unit","grid.text","grid.newpage", "pushViewport", "gpar", "grid.lines", "grid.polygon", "grid.points", "popViewport", "upViewport","viewport")
  importFrom("quadprog", "solve.QP")
   importFrom("maps", "map")
  importFrom("dichromat","dichromat")
S3method(plot, tverify)
S3method(tverify, default)

