EQS on the U Cluster

EQS is a program for Structural Equations Modeling written by Peter Bentler. It can be used for both Confirmatory Factor Analysis and Confirmatory Path Analysis. It features a simplified command language, avoiding the complexity of matrix notation. The current version is EQS 6.1.

Help and Information on EQS

Help for running EQS programs is available by typing eqs -h. Complete documentation for EQS syntax is available in EQS: Structural Equations Program Manual by Peter M. Bentler (1995, Encino, CA: Multivariate Software, Inc.).

Sample EQS programs are available in /usr/local/lib/eqs-6.1.

Running an EQS program

For details on running eqs programs, type eqs -h.

An EQS batch file may be run with the following specification:


  eqs -i infile -o outfile

where infile is the name of the input file containing EQS commands and outfile is the name of an output file to contain the results of the analysis.

Information is also given in the ASU web pages for EQS.

Caveats

If you are using an external data file, the filename must be in uppercase, e.g., MANUL1.DAT rather than manul1.dat.

Aborted EQS programs will leave scrzz* files in your directory as well as another file called "core". These should be removed (use rm scrzz* or rm core to do this).