Doubt about svmtrain and svmclassify function in matlab

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vrutang
vrutang 2017 年 4 月 16 日
編集済み: vrutang 2017 年 4 月 16 日
load fisheriris
xdata = meas(51:end,3:4);
group = species(51:end);
svmStruct = svmtrain(xdata,group,'ShowPlot',true);
Group_svm=svmclassify(svmStruct,xdata)
Considering the hyperplane shown in figure, plot shows that 5 data are misclassified (2 'versicolor' and 3 'virginica') but 'Group_svm' shows 6 data are misclassified (3 'versicolor' and 3 'virginica'). Can anyone help me understand what am I missing?

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