Plot Iso-probability lines for Gaussian Processes?

Questions
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1

Hi,
I have a question about plotting Iso-probability lines for Gaussian Processes classification in Mathematica.
For example following figure shows a two-dimensional classification iso-probability lines for the predicted probabilities.
Any advice is appreciated.

Imageiso.png
Imageiso.png800×600 50 KB

2

Use ListDensityPlot or DensityPlot to create the ‘background’. The lines can be created using ContourPlot (or regular Plot depending on the equations governing the lines). The plots can be combined using Show.

3

Hi Sander,
Many thanks for your help and attention.
Ghorbani