I am having an inconsistent result in the workflow I have made for a linear regression. I just wanted to check the value of R^2 and I have noticed that the linear regression tool gives me a different R^2 from the model comparison tool, and I have used exactly the same data to fit and to test the model on purpose, just to check if both tools were giving me the same number. I do not understand why both tools give me a different R^2 since the data is the same. Please, find attach the workflow and dataset I am using.
Thanks in advance!