Any MATLAB functions for prediction index and Brier score

Hi everyone,

I have 3 groups (group A, B, and C) and I've performed logistic regression between group A&B, and A&C. My outcome measurements are beta values and risk and I would like to calculate a prediction index and afterwards use Brier scores.

Are there any MATLAB code for any of these calculations?

Thanks a lot,

Eric

Answer 1

[Rollin Baker]

Hi Eric,

MATLAB has quite a few options for your use case, particularly within the Statistics and Machine Learning Toolbox. The predict function is used to predict the response of linear regression models, and seems like a good fit for what you are trying to accomplish. The following page shows how to use the predict function:

https://www.mathworks.com/help/stats/compactlinearmodel.predict.html

Depending on how you are calculating Brier scores, you can use the built-in math operations to model them.

Good luck on your project!

-Rollin