Model comparison tool

[tutankamon]

Hi everyone,

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!

[JeffF · Accepted solution]

Hi @tutankamon

The Correlation field in the Model Comparison output is the Coefficient of Correlation, or R. Square it to get R^2.

Here's an article about it:

What is the difference between coefficient of determination, and coefficient of correlation?

Thanks.

[tutankamon]

Hi @JeffF,

Thank you very much for your answer. Now it does make sense.

Kind regards,

Javier