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How to tell two categorical arrays with different categories names are the same

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MA
MA 2022-3-20
回答： Peter Perkins 2022-3-24
Assume I have two categorical arrays as for example the following:
X=[1,1,2,3];
y=[3,3,1,2];
The two arrays have different classes names (categories) but in the classification task they have the same classes. How could I tell that the two arrays are the same (have the same categories)?

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Peter Perkins
Peter Perkins 2022-3-24
You don't have categorical arrays, you have numeric arrays. If you had categorical arrays, you'd just look at their categories.

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