I built a cross-validated SVM model with fitcsvm but I cant seem to use "predict" to predict responses from a new data with the model

Question

NCA 2024-6-25

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2131966-i-built-a-cross-validated-svm-model-with-fitcsvm-but-i-cant-seem-to-use-predict-to-predict-respons

评论： Adam Danz 2024-6-26

Hi there

I built a cross validated and Bayesian Optimised model (CValidated_SVMModel_for_AUC1) with Support Vector Machines (SVM) on MATLAB with the "fitcsvm" syntax

I need to use the cross validated model to predict the responses from a new data (X_test)

I have tried to use this:

[Predicted_label,score] = kfoldPredict(CValidated_SVMModel_for_AUC1, X_test) without sucess

I have also tried to use:

[label,score] = predict(SVMModel_for_AUC1,X_test) without success

I will apprecaite if someone can advise me on how to resolve this

Thank You

5 个评论
显示 3更早的评论隐藏 3更早的评论

NCA 2024-6-25

编辑：Adam Danz 2024-6-26

It was created with crossval syntax specifically CVPartition cross validation tool

CValidated_SVMModel_for_AUC1=crossval(SVMModel_for_AUC1,'CVPartition',c_part)

Adam Danz 2024-6-26

In that case, it seems like kfoldPredict would the right tool. What error message or unexpected output are to getting with that? It would be easier to investigate this if you attach a mat file containing SVMModel_for_AUC1 and c_part.

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Muskan 2024-6-26

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2131966-i-built-a-cross-validated-svm-model-with-fitcsvm-but-i-cant-seem-to-use-predict-to-predict-respons#answer_1477071

Hi

You can make sure that "CValidated_SVMModel_for_AUC1" is a cross-validated SVM model object created using "fitcsvm" and that it has been optimized and validated.

Cross-validated models contain multiple trained models (one for each fold). You need to extract the best trained model from the cross-validated object to use it for prediction. And you need to use the "predict" function with the extracted model.

You can refer to the following Stackoverflow answer for a better understanding:

https://stackoverflow.com/questions/55624612/no-valid-system-or-dataset-was-specified-while-using-predict-in-matlab

I hope this helps!

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

I built a cross-validated SVM model with fitcsvm but I cant seem to use "predict" to predict responses from a new data with the model

5 个评论
显示 3更早的评论隐藏 3更早的评论

采纳的回答

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

更多回答（0 个）

另请参阅

类别

标签

产品

版本

Community Treasure Hunt

I built a cross-validated SVM model with fitcsvm but I cant seem to use "predict" to predict responses from a new data with the model

5 个评论 显示 3更早的评论隐藏 3更早的评论

采纳的回答

0 个评论 显示 -2更早的评论隐藏 -2更早的评论

更多回答（0 个）

另请参阅

类别

标签

产品

版本

Community Treasure Hunt

5 个评论
显示 3更早的评论隐藏 3更早的评论

0 个评论
显示 -2更早的评论隐藏 -2更早的评论