Draw only 2 ellipses in PCA plot (instead of 20)-CodePudding

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Draw only 2 ellipses in PCA plot (instead of 20)

Time：02-22

I have a PCA plot created with ggplot/ggfortify and the function autoplot(), such as in this question:

^{Created on 2022-02-21 by the reprex package (v2.0.1)}