# 鸢尾花数据和黑莓树数据的调和曲线图
data(iris)
data(trees)
library(MSG)
iris.col = vec2col(iris$Species)
par(mfrow = c(2, 2))
par(mar = c(4, 4, 0.2, 0.2))
andrews_curve(iris[, 1:4], n = 50, col = iris.col,
xlab = "t", ylab = "f(t)")
legend("topleft", col = unique(iris.col), lty = 1, bty = "n",
legend = unique(iris$Species))
andrews_curve(iris[, c(3, 4, 2, 1)], n = 50, col = iris.col,
xlab = "t", ylab = "f(t)")
andrews_curve(scale(iris[, 1:4]), n = 50, col = iris.col,
xlab = "t", ylab = "f(t)")
x = andrews_curve(scale(trees), n = 50,
xlab = "t", ylab = "f(t)")
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