how to show the predict sample ploted in the figure?

result was

WARNING: using -h 0 may be faster ...

optimization finished, #iter = 154

nu = 0.188307

obj = -2.955887, rho = -0.094312

nSV = 7, nBSV = 4

Total nSV = 26

Accuracy = 88.8889% (40/45) (classification)

Accuracy = 88.8889% (40/45) (classification)

if true
  % code
end
Warning: Ignoring extra legend entries.

> In legend at 294 In xianxing at 30

I can not see the predict sample in the figure. thank you