In the "Export Regression Model to Predict New Data" under the "Deploy Predictions Using MATLAB Compiler", what does cartable.mat stands for?

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Praveen Kumar M 2019-6-15

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https://ww2.mathworks.cn/matlabcentral/answers/467238-in-the-export-regression-model-to-predict-new-data-under-the-deploy-predictions-using-matlab-comp

回答： robin thomas 2019-12-10

I am using regression app for developing machine learning algorithm. After I have developed model, I would like to create a MATLAB app for it. When I went through the documentation, I was able to find a help (https://in.mathworks.com/help/stats/export-regression-model-to-predict-new-data.html). Under this in "Deploy Predictions Using MATLAB Compiler", they have suggested some steps. But on trying those steps, I am getting error?

The step is that they have asked to create a function and then run it

function ypred = mypredict(tbl)

%#function fitrtree

load('mymodel.mat');

load('cartable.mat')

ypred = trainedModel.predictFcn(cartable)

end

But, when i run the function, I am getting an error.

error using load

Unable to read file 'cartable.mat'. No such file or

directory.

Error in mypredict (line 4)

load('cartable.mat')

In the documentation it is mentioned that, "It must also have a pragma, so the compiler recognizes that Statistics and Machine Learning Toolbox™ code is needed in the compiled application. This pragma could be any function in the toolbox." I am not understanding this part. What does it mean by any function in the toolbox. What is cartable.mat?

How to overcome this error?

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Praveen Kumar M 2019-6-15

Thanks dbp for a detailed explanation

Praveen Kumar M 2019-6-16

Your explanation worked perfectly well. But i got landed in no mans land with another issue. The MATLAB compiler is not available for MATLAB student licence.

So I cannot anyway use this code. :(

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