Press Quick Plot to take a quick look at the data. If they look OK,
you are ready to choose a function.
Choose a Function
You can enter your own equation using the variables you have defined or
select one of the predefined equations
to solve. In each case, there should be one or more parameters (such as
m and b, or a and k) and one or more variables (such as
x, y, T, or t).
If you are using data, then at this point the variables must be from columns of your data, and
the job is to solve for the parameters that make the best fit for a given function.
But if you are not using data, then what is a "parameter" and what is a "variable" doesn't really
Once you have chosen a function and assigned variables, you are ready to solve for the parameters.
Solve for the Parameters
If you only want to optimize some of the parameters,
add a second '=' at the end of the line for all parameters you wish to optimize.
Note that without reasonable starting conditions, you may get "bogus" solutions!
In addition, if only one parameter is allowed to optimize, you don't really need
any data at all.