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Created October 28, 2015 08:18
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how to label a busy plot
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.md 
library(vegan)
N <- 1000
xy <- data.frame(x = rnorm(N), y = rnorm(N), z = rnorm(N))

pca <- prcomp(xy)
plot(pca$x, type = "n")
orditorp(x = pca, display = "sites", air = 2)

http://biolitika.si/piks/Rplot02.png

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