Lisrel and Prelis on the FATMAN Unix Server
Lisrel 8 and Prelis 2 for Sun Solaris allows the interactive execution of programs from the Unix environment. Access to Lisrel and Prelis requires a Unix ID on the FATMAN Server (fatman.siu.edu) and knowledge of Lisrel and Prelis commands and syntax. (Unix access for a Network ID can be obtained on the web.) The following paragraphs describe how to execute programs on Unix.
Sample Programs
To run a Lisrel or Prelis program under the Unix environment, create a file containing the commands using a Unix editor (e.g., VI, Emacs, or XE). The Lisrel program file typically has the file suffix "ls8" (e.g., sample.ls8), while the Prelis program ends with "pr2" (e.g., lab1.pr2).
A sample Lisrel 8 program follows:
hypothetical model estimated by ml da ni=11 no=100 cm sy fi=ex1.cov mo ny=4 nx=7 ne=2 nk=3 be=fu ps=sy,fr fr ly 2 1 ly 4 2 lx 2 1 lx 3 1 lx 3 2 lx 5 2 lx 7 3 be 2 1 be 1 2 fi ga 1 3 ga 2 2 va 1 ly 1 1 ly 3 2 lx 1 1 lx 4 2 lx 6 3 ou mi rs ef mr ss sc
A sample Prelis 2 program is:
example 1a: prelis test on data.100 da ni = 6 nobs = 100 missing = -9 treatment = pairwise raw-data = data.100 labels contin1 ordinal1 ordinal2 ordinal3 contin2 ordinal4 continuous: contin1 contin2 output matrix = pmatrix
Executing Programs
To execute a Lisrel program, type the following command from the Unix $ prompt:
lisrel sample.ls8 sample.out
where "sample.ls8" is the name of the program file and "sample.out" is the output file to be created.
To execute a Prelis program, type the following command from the Unix $ prompt:
prelis2 prog1.pr2 prog1.out
where "prog1.pr2" is the name of the program file and "prog1.out" is the output file to be created.
References
The following Lisrel and Prelis reference manuals were written by Karl Joreskog and Dag Sorbom:
Lisrel 8: Structural Equation Modeling with the SIMPLIS Command Language. 1993. Scientific Software International. Chicago. (ISBN 0-89498-033-5)
Lisrel 8: User's Reference Guide. 1996. Scientific Software International. Chicago. (ISBN 0-89498-040-8)
Prelis 2: User's Reference Guide. 1996. Scientific Software International. Chicago. (ISBN 0-89498-041-6)
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