Error in ThingSpeak with Fit Function

Hi MathWorks Community, I have a very strange problem and I hope you can help me.

1. I have a code, this code does a simple lineal regression with the function FIT.
2. This code works in my principal account (account 1) without problems or errors.
3. This same code (copy - paste) does not work in other account (account 2).
4. The only difference between both accounts is that the account 2 has a public channel.
5. The error is this:

'fit' requires one of the following: 
Curve Fitting Toolbox 
Model-Based Calibration Toolbox 
Predictive Maintenance Toolbox 
Error in Correlation TvsH (line 32) 
fitObject = fit(temperatureData,humidityData,'poly1');

As I said before, I think this is a very strange error, because in the account 1, the code works perfectly, however in the account 2, it does not work... Somebody knows What can I do for solve this problem?, I need to use Matlab toolbox in account 2.

Thanks for your attention, I hope you can help me.

Answer 1

[Vinod]

This is because you are logging in with two different MathWorks Accounts, each of them have access to a different set of toolboxes.

To confirm, go to your MathWorks Account page that lists the products each account is licensed to. Note that you can use functions from MATLAB, and any toolboxes you are licensed to, on ThingSpeak when you are logged in with that account.

If you want to use the toolboxes from both accounts, ask your MATLAB license administrator to add both accounts as licensed end users on MATLAB and the toolboxes you are looking to use.

[Herberth Gracia]

Thanks Vinod, That's the problem, my other account has a full license. I thougth that the code designed worked with ThingSpeak toolboxes, but no, it used extra toolboxes of my account. Thank you!