This matrix programming language for econometrics is written by Jurgen A. Doornik of Oxford University. There are a number of packages and utilities for it for basic and advanced econometric work (panel data, ARIMA, VAR, cointegration, simultaneous equations, etc.). It can also import data in a number of formats. Complete information about the package is available, as is the actual code for a wide variety of platforms. Doornik also writes PcGive, PcFiml, GivWin, and Stamp, which are described in this section. Marius Ooms kindly provided this entry.