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For a two-class linear discriminant analysis problem.

If each class has only two properties, I can easily use these two properties as the x-axis and y-axis of the Cartesian coordinate system, using a point to represent an instance in the coordinate system. just like it

Similarly, if a class has three properties, I can represent it in a space Cartesian coordinate system.

my question is: If the class has four or more properties, how should I handle it so that it can be visualized

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  • $\begingroup$ You could perform LDA on the principal components of the attributes and then plot the discriminant and the data projected on the first two PCs. $\endgroup$ – ttnphns Aug 24 at 6:36

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