Plotting PCA in 3d

[Former user]

Dear members of the Grant Lab,

I'd like to know if it's possible to plot the PCA in 3D, I'd like to be able to observe PCs 1, 2, and 3 in the same graph.

Thank you very much for your attention.

Best, Fernando

[Xinqiu Yao]

In principle yes. It is basically a scatter plot, and you can use, for example, the rgl package to make it 3D.

library(rgl)
plot3d(pc$z[, 1], pc$z[, 2], pc$z[, 3])

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