1. Download, install and run SimExplorer.
2. Let's create an exploration application by clicking on the "File > New Exploration Application" menu, and give it a name like "test". You're ready to design your exploration.
3. Now, you have some views opened and an editor (maybe unabled for instance).
4. Select in the "Applications" views (initially on the left), the "Exploration Loop" item, you can now select the experimental design you want in the editor (initially in the center), and configure it (if it is configurable). Select the method "Complete plan".
5. You can know add one or more experimental factors with the menu "Exploration > Add a factor …". Add a factor named "a", of type "quantitative" and "Double", leave the domain at "Range" and increase the max value to "5".
6. Now, you will create a variable with the menu "Exploration > Add a variable …", named "x", of type "double", and check the option "Gathered after the loop". With this last option, the values of your variable setted in the loop will be gathered in an array.
7. Unfold the "Exploration Loop" node, and right-click on the "Input generation" child, to add a new input processor and select the "Groovy Processor". Select it and type the code : x = factors.a, so you get the current value of the "a" experimental factor in your variable x.
8. Now, select the "Final processing" component, and type the code : println x. It will print the gathered values of x during the exploration loop.
9. Finally, run the exploration with the menu "Exploration > Run …". You should see the values of the variable x that contains the values of the factor a.