Gdx files

In the end you can click on "Add Rows Or you can simply click on "Accept" or "Cancel". For further information about changing element names and values please see "Editing element names in rows and columns" and "Editing single values". On the right side you will see the current element names. If you change for example "seattle" into "paris", this new uel will be shown in all places where "seattle" stood before.

You can also add new UELs, but these will only be shown if you use add them to a table in your gdx file. You can enter the symbol name and a description. The symbol type can be chosen from a drop down menu, for example "Parameter". You can also choose the number of dimensions. On the right side you see the domain list.

We selected 3 dimensions, so in the domain list 3 domains can be selected. But you can choose any domain which is present in the gdx file. Search symbols and their domains in the current file. If you search in a gdx-file, which contains a set "anyreg" and another set, defined as "set reg anyreg " for those symbol and domains, which contain the phrase "any", not only the symbol "anyreg" will be found, but also the first domain of the symbol "reg".

If you run scenarios and want to compare the resulting gdx files you can do this very easily by merging the files. One dimension for naming the scenario will be added to all symbols in the gdx files.

They will appear in the list of files. In the text box you see the scenario name, which is "transport" in this case. You can change the name if you want. The checkbox "Compress merged gdx file" means that the result file will be compressed in a format, which is readable for GAMS as well.

If you click on "Merge and save as new gdx file You can change the appearence of your result table by clicking on the "Formatting" tab in the bottom bar.

On the right side you can change the "Decimals" and choose if you want a point or a comma to separate the decimals. You can activate the checkbox " Separator", so that a number On the left side you see the "Current Functions", for example minimum, maximum, mean and median. You can change the order by clicking "Up" or "Down" or remove functions. The current functions will be shown in the gdx-Editor. Each column is interpreted separately and the results are updated whenever the user changes a setting or the order of elements.

In the following box you can add a percentile, which will be added to the current functions. Compare with Previous: The value of each cell is compared with the value of the cell in the previous column,.

Compare with Column For example you might only want to see relative changes of your values. You can sort the table by name ascending or descending by selecting the sort type on the left. If you activate the checkbox "Sort selected Columns" you have also the oportunity to sort the columns by values. In this example we sort as a first order the column 3 descending and as a second order the column 1 ascending. Maybe you know the problem that you copy a table from excel as a table into the GAMS IDE with the result, that you have to insert points between the element names, that you have to shift all the values to the right position and if you refresh your excel file, you have to do everything again - which might lead to errors.

In the GMS-Manager instead, you have many possiblities to copy your values and element names. On the left side, you can choose the copy options for the values. In the Statistics tab, you can activate the comparison of columns. Download Free File Viewer here. Not sure exactly what type of file you are trying to open? Try our new File Analyzer. It is a free tool that can identify more than 11, different kinds of files - most likely yours too!

It will help you find software that can handle your specific type of file. Download File Analyzer here. For variables and equations only the levels and marginals will be merged. To merge other variable or equation attributes like bounds, scales and priorities, they have to be listed explicitly e.

The file trnsport. Only the relevant declarations are shown. The parameter B is read from the GDX file using the name 'demand', and only those elements that are in the domain j will be used. Values for parameter B that are outside the domain j will be ignored without generating any error messages.

In this example, the set J is also read from the GDX file, and is used as the domain for parameter B. All elements read for the set J will be used. Values for the parameter B that are outside the domain J will be ignored. Note that the dimension of set J is set to one by specifying its domain.

The following:. GAMS does not allow us to provide domain checked data, if the data for domain sets is unknown. So this code produces a compilation error:. When entering data directly in the GAMS source adding the domain sets before the actual parameter declarations is usually not a problem, but when data comes from external sources e.

Nowadays, such data exchange happens mostly via the GD facility. Here is a simple example:. The latter one is no problem anymore, since the data for set i is known when loading symbol a. In such case the user can explicitly select an index position here first index position from the GDX symbol:. The automatic index position matching i. This follows the style of the GAMS run time projection operation:. Here is an example how to load.

The network is defined by the capacity parameter cap contained in a GDX container net. The following code loads the entire node set n of the network as well as the nodes with outgoing out and incoming in arcs and the capacity c. Learn more. Asked 7 years, 6 months ago. Active 1 year, 3 months ago. Viewed 19k times. Linear, TextureFilter. Improve this question. Add a comment.

Active Oldest Votes. Improve this answer. Porlune Porlune 6 6 silver badges 15 15 bronze badges. I implemented i18n for my game, and could not load the certain file. This way seems strange but actually work lol.