DIGRAM, a PC based program, written by Svend Kreiner of the Department of Sociology, analyzes recursive graphical models for discrete data. The program is interactive and allows both for asymptotic and exact conditional inference. Included in the program is a help option which explains the commands for the program. For general introduction to the use of the program see the recent paper by Klein, Keiding and Kreiner Statistics in Medicine 14, 1265-1290, 1995 or the technical Report on which the paper is based.

The program is available in the self extracting file kreiner.exe. To extract the program, place the file kreiner.exe on your PC and issue DOS command kreiner.exe. This will create a large number of files. The main program is in the file DIGRAM.EXE. The program VARHELP.EXE is useful for constructing inputs into the program.

Further information on the use of the program is available from Svend Kreiner at socsk@pc.ibt.dk.

The program is also available by anonymous ftp from biostat.mcw.edu in the directoy pub.