Why the Accuracy is changing for same data set while using Classification learner app in MATLAB.How do I get the Accuracy same for all the time

Iam working with EMG signals .I found features of three signals and I need to use classfication learner app.When I use the same set of features the accuracy is varying for same validation (like cross validation and Hold out validation) with PCA.Why it is like that?

How can I get the accuracy same for all the time

Answer 1

[Walter Roberson]

Before every run, use rng() to set the random number seed to a consistent value.

Most training systems for classifiers and neural networks use random numbers.

[C PRASAD]

Thanks for the Reply but where can I use rng()

[Walter Roberson]

for K = 1 : 5
    rng(12345)
    run the classification at this point
    %you should get consistent answers
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