```
# NOT RUN {
x1 <- matrix(rnorm(1e3), ncol = 2)
x2 <- matrix(rnorm(1e3, mean = 3, sd = 1.5), ncol = 2)
x <- rbind(x1, x2)
dcols <- densCols(x)
graphics::plot(x, col = dcols, pch = 20, main = "n = 1000")
# }
```

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