1.
In the sample data folder that was installed when you installed JMP, open the Nonlinear Examples folder and then US Population.jmp.
2.
Right-click the column name x-formula and select Formula.
Notes: 
4.
Click New Parameter.
5.
7.
(Optional) To add several parameters (one for each level of a categorical variable, for example) at once, select Expand into categories, selecting column. Then select the column for which you want to expand the parameter.
8.

Help created on 9/19/2017