Download VEDA4 User Guide - Version 4.3.8.

In order to apply to a particular model, VEDA must be provided with the list of sets
corresponding to the indexes into parameters, variables, and equations, the list of relevant
parameters, variables and equations (for some models, results concerning equations may be
absent) to be managed. VEDA then organizes and provides access to the various data forms
in a transparent manner, allowing the analyst to focus on exploring and interpreting the
meaning of the information. Each of the indexes into this data is presented on a separate
“Tab” on the main VEDA table specification form, and corresponds to the various row
qualifiers, as well as the nature of the data column(s), of the resulting analysis tables
constructed by VEDA. Each kind of numeric information managed is named by the user
and presented on one of the Tabs of the VEDA table specification form (for the MARKAL
family of models this corresponds to the Attribute tab).
This user’s manual assumes that the model results have been processed by a model-specific
GAMS program (discussed in Appendix A) that produces data files in a format suitable for
input into VEDA. Such data files contain all relevant information on the sets, variables,
attributes, and equations, and on the Network (Reference System), if appropriate, on which
the model is based. Additional information on linking GAMS models to VEDA is available
from Gary Goldstein at ([email protected]).
The user creates analysis tables by choosing their contents, and refining their layout. The
software may function in interactive or batch mode. This user’s manual is divided into four
sections and three appendices:
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Installation of the VEDA software;
Getting started;
Advanced features;
Reference Manual;
Appendix A: GAMSdata definition file GDX2VEDA
Appendix B: List of MARKAL attributes
Appendix C: VEDA versions
It is recommended to get fully familiar with the Getting started features before trying the
advanced features of VEDA. The Reference Manual contains details on all the VEDA
menus options.
Note also that a sister software called VEDA-FE (front-end) allows the browsing and
manipulation of input data for the MARKAL/SAGE/TIMES models. But unlike VEDABE, VEDA-FE is a system dedicated to each particular model and may not be readily
adapted to support other models, GAMS-based or not.
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