i got matlab result?.......any one explain this result?

mlp = svmtrain(data,labels,'Kernel_Function','mlp','Method','SMO');

mlp =

          SupportVectors: [40x2 double]
                   Alpha: [40x1 double]
                    Bias: 0.0404
          KernelFunction: @mlp_kernel
      KernelFunctionArgs: {}
              GroupNames: [45x1 double]
    SupportVectorIndices: [40x1 double]
               ScaleData: [1x1 struct]
           FigureHandles: []

[Walter Roberson]

How does this differ from what you expected ?

[Dhines]

in begining actually i dont know how to train the svmtrain function in matlab. i readed doc of svmtrain and gave as it is. i got this output. now want to know what this result coming to say?

[Walter Roberson]

Have you read the description of the output arguments in http://www.mathworks.com/help/bioinfo/ref/svmtrain.html ?

[Dhines]

yes sir...well i write my algorithm here.

the Training examples:

    x0 =[x1, x2 . . . xk . . .X_l ]^T,
    Class labels: y = [y1, y2 . . . yk . . . y_l ]^T
    Subset of surviving features: s= [1, 2 . . . n]
    x = x0(:,s)
    Train the classifier: α= SVM-train(x,y).

having some steps, i implement so far. for alpha i got matlab result as i shown before. please explain what its contains?

Answer 1

[Walter Roberson]

mip.Alpha is your vector of Alpha results.

[Dhines]

thank you its works.

[Dhines]

how to read the values from mip.Alpha

[Walter Roberson]

What were you hoping to get out of the svm training process?