How to draw an SVM regression plot

Question

영훈 정 2023-9-13

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2020401-how-to-draw-an-svm-regression-plot

回答： Drew 2023-9-13

As shown in the figure, I would like to draw a plot that includes the lines of the margin, support vector, and seperating hyperplane of the model.

However, even if I get a model using fitrsvm, I can't use the information in the support vector.

I need your help.

x = normrnd(10,1,1000,1);

y = x*3 + normrnd(10,1,1000,1);

hold on

Mdl = fitrsvm(x,y)

Mdl =

RegressionSVM ResponseName: 'Y' CategoricalPredictors: [] ResponseTransform: 'none' Alpha: [768×1 double] Bias: 10.6836 KernelParameters: [1×1 struct] NumObservations: 1000 BoxConstraints: [1000×1 double] ConvergenceInfo: [1×1 struct] IsSupportVector: [1000×1 logical] Solver: 'SMO' Properties, Methods

figure(1);scatter(x, y);

It's an example of a hand-drawn drawing. I want to draw something like this.