Splitting data into training and validation sets within Classification Learner App

Question

Mohamed Trabia 2022-9-15

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https://ww2.mathworks.cn/matlabcentral/answers/1806160-splitting-data-into-training-and-validation-sets-within-classification-learner-app

评论： Mohamed Trabia 2022-9-22

Hi

I am trying to use the Classification Learner App within Matlab R2020a for a relatively simple problem. While I can get results I do not see how to split the data into training and validation data sets; only how to do k-folds.

Also, I cannot save my session. I can only export a model. My interface looks different than what is online

Any help is appreciated

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Answer 1

Ayush Yadav 2022-9-20

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https://ww2.mathworks.cn/matlabcentral/answers/1806160-splitting-data-into-training-and-validation-sets-within-classification-learner-app#answer_1056990

Hi Mohamed Trabia,

To split the data into training and validation data sets you should choose the 'holdout validation' option in the validation tab when you create a new session. You can find more information under the 'Choosing Validation Scheme' at the following link:

https://in.mathworks.com/help/stats/select-data-and-validation-for-classification-problem.html

You can learn more about saving sessions from the 'Save and Open App Session' section at the following link below:

https://in.mathworks.com/help/stats/select-data-and-validation-for-classification-problem.html

The UI looks different probably because you are using R2020a and MATLAB Online uses R2022b.