Nothing
##
## Computing and plotting a bpca object with 'rgl' package - 3d
##
open3d()
plot(pca <- bpca(iris[-5],
d=1:3),
rgl.use=TRUE,
var.col='brown',
var.factor=.4,
var.cex=1.2,
obj.names=FALSE,
obj.cex=.8,
obj.col=c('blue', 'green', 'red')[unclass(iris$Species)],
simple.axes=TRUE)
scores <- pca$coord$objects
ell <- ellipse3d(cov(scores),
center=mean(scores),
level=0.68)
plot3d(ell,
col='gray',
alpha=0.2,
add=TRUE)
play3d(rgl:::spin3d(axis=c(1,2,3)),
duration=12)
# This graphic was suggested by Michael Friendly (York University).
# Suggestion: Interact with the graphic with the mouse
# left button: press, maintain and movement it to interactive rotation;
# right button: press, maintain and movement it to interactive zoom.
# Enjoy it!
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