Error in LS-SVMLab ?

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shawin 2023-7-7

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https://ww2.mathworks.cn/matlabcentral/answers/1993108-error-in-ls-svmlab

评论： shawin 2023-7-8

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Hi,

kindly, i have an issue with lssvm tool toolbox, i am getting error !!

Please could you help ?

error

Dot indexing is not supported for variables of this type.

Error in tunelssvm (line 145)

if model.code(1) == 'c', % changed

Note

"I just used iris data"

the code :

load iris.dat              
setosa = iris((iris(:,5)==1),:);        % data for setosa
versicolor = iris((iris(:,5)==2),:);    % data for versicolor
virginica = iris((iris(:,5)==3),:);     % data for virginica
obsv_n = size(iris, 1);
X= iris(:,1:4);
Y=iris(:, 5);
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 type = 'classification'; 
 L_fold = 10; % L-fold crossvalidation
 [gam,sig2] = tunelssvm({X,Y,type,[],[],'RBF_kernel'},'gridsearch', 'crossvalidatelssvm',{L_fold,'misclass'});
 [alpha,b] = trainlssvm({X,Y,type,gam,sig2,'RBF_kernel'});
 plotlssvm({X,Y,type,gam,sig2,'RBF_kernel'},{alpha,b});

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Cris LaPierre 2023-7-7

There is no error in what you have shared. We need to see the code where the error occurs (line 145), as well as the code used to create your variable model.

shawin 2023-7-8