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Above I was using a GAMSBAS or a GDX point basis for the same model that the basis was generated from. Some might ask: Why would this ever be done? Suppose I have a model that I am working on and at some point I need to revise the data in the initial stages before the model statements. Two alternatives would be available.
| • | I could include a new table of revised data and use replacement statements to replace the old data. |
| • | I could go back fix the original data and rerun the model from scratch. |
The obvious deficiency of the second strategy is that I lose the basis. But the first strategy introduces yet another problem. I would have a model with the most current data spread throughout. I find the problem with the first alternative more odious and use a basis to overcome the shortcoming of the second.
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