7. Setting parameters

The interface for setting parameter values in the main window is quite straight forward. For most parameters, you simply type values into the appropriate text entry box. For others, you select a value from a menu. That's all fine and dandy, but imagine the situation where you have several dozen data groups imported into ATHENA and you decide that you need to change the value of the «rbkg» parameter for every group. It would be extremely tedious to manually change the parameter value for each data group one by one. Fortunately there is a better way.

In this chapter, we will see the various tools ATHENA provides for constraining parameter values across data groups. We will also look in detail at how the «e0» parameter is determined and how parameter defaults are set.

---

• 7.1. Constraining parameters between data groups
  • 7.1.1. Constraining individual parameters
  • 7.1.2. Constraining groups of parameters
  • 7.1.3. Constraining all parameters
• 7.2. Setting E0
  • 7.2.1. Enforcing an element and edge
• 7.3. Default parameter values

---

DEMETER is copyright © 2009-2016 Bruce Ravel – This document is copyright © 2016 Bruce Ravel

This document is licensed under The Creative Commons Attribution-ShareAlike License.

If DEMETER and this document are useful to you, please consider supporting The Creative Commons.