importFrom("graphics", "legend", "lines", "locator", "mtext", "par", "plot", "points", "title")
importFrom("utils", "combn", "memory.limit", "read.table", "write.table")
export(
  quantity, 
  assignments, 
  selectdesign, 
  graph1, 
  observed, 
  distribution.systematic, 
  distribution.random,
  pvalue.systematic, 
  pvalue.random
)
