Exponential Decay - Fit Curve

[#1]

I want the Scale term (a) to =1.0; I'm using FitExponential 2P; can I specify the scale factor somewhere in Fit Curve or do I need to use a different platform?

[#2]

You need to define your model as a formula in a new column and then choose Nonlinear platform.

[#3]

Thanks, it worked ok.