HI, I am trying to fit model to data, but it is showing an error. Can someone please help me with this. I have attached the mathematica file for the reference.
Thanks, Jaydeep
In the line
fit = NonlinearModelFit[ data, {Model3[ka, Cc, te]}, {ka, 1.67}, {Cc, te}]
{ka, 1.67} is supposed to be a list of parameters to vary. 1.67 is a constant.
There are a couple of problems I see (note that I'm not looking at your input carefully):
Model3 is a function of 2 variables. When calling our fitting function, you give it 3 variables. One of these is wrong.
Model3[ka?NumericQ, te]
You are missing a set of braces in the fitting function. It should look something like this:
fit = NonlinearModelFit[data, {Model3[ka, te]}, {{ka, 1.67}}, {te}]
HI, Thanks for the reply, But then usually I do the fitting procedure the same way, and it has worked earlier. I am attaching a file where it had worked fine. I am not able to find why the same code is not working in the above file. I will appreciate, if you can please help me find out my mistake.
Thanks
The error message tells you exactly what the problem is. It expects a symbol, but you gave it a real.
