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VCE is a program to estimate covariance matrices in a rather general manner.

Two methods are available:

  • REML (REstricted Maximum Likelihood) using analytical gradients,
  • Gibbs sampling.


VCE is available in the 6.0.2 version.


Batch use:

  • prepare the job description script -- use a general skeleton supplemented by the following lines:
# load the VCE module
module add vce-6.0
# run the computation
vce-6.0.2 my_pfile
  • pass the job description file to the scheduler together with the request for a single processor and the requested amount of memory:
$ qsub -l nodes=1:ppn=1 -l mem=XXXg

Interactive use:

  • ask the scheduler for an interactive job having a single node and a single processor reserved:
$ qsub -I -l nodes=1:ppn=1 -l mem=XXXg
Note: Do not forget to apppropriately set the amount of requested memory (mem attribute) and/or another job requirements.
  • load the VCE module into the environment:
$ module add vce-6.0
$ vce-6.0.2


The documentation is available on the producer's WWW server or locally in the /software/vce-6.0/doc directory.


The program is free of charge for research purposes, but the use should be acknowledged in publications.

Supported platforms


Program administrator

Ludmila Zavadilová, Tomáš Rebok