Introduce data table

If you only have discrete values, which are only function of a single coordinate, you should define a \"function\" object:

in Code-Aster, a \"function\" is a discrete-value table that will be interpolated.
(compared to a \"formula\" object which is an analytical expression)

Use Defi_Fonction to define this table.
The function parameter will be \"X\" in your case and you will need to enter several pairs of (parameter,value) in the VALE keyword to define your data table.

For example, VALE= ( (0,0), (1,10), (2,0) ) corresponds to the this table :

X ; Value

---

0 ; 0
1 ; 10
2 ; 0

I hope that this will help you to solve the problem.

PS: if you have 2 parameters in you table, you may then use a \"nappe\" = 2D interpolated function created with the Defi_Nappe command.