A simple wrapper on plot with all
  default values set to create a blank plot space. 
  Specifically, x = 1, y = 1, type = "n", 
  xlab = "", ylab = "", xaxt = "n", yaxt = "n", 
  and bty = "n". Any of the input values can be overwritten within
  this function's call.
blank(
  x = 1,
  y = 1,
  type = "n",
  xlab = "",
  ylab = "",
  xaxt = "n",
  yaxt = "n",
  bty = "n",
  ...
)if (FALSE) {
  blank()   
}