Clean, Haskell och Mathematica uses functional program languages where it is easy and fast to express a model.
Clean and Mathematica also have powerful tools for graphics.
Mathematica has a vast amount of mathematical functions.
These languages are therefore excellent to use when evaluating in R&D
Stata is a statistics software package vhaving a rich amount of statistics function. Importation from databases is straight forward. It is very useful for statistics in science as well as humanities.