绘制多个矩形

Question

我是R中真正的假人。你能解释一下如何使用rect如下图所示绘制多个矩形吗？

谢谢！

Answer 1

plot(c(0, 100), c(0, 100), type = "n", axes = FALSE, xlab = "", ylab = "")
rect(10, 10, 90, seq(10, 90, 1), border = "lightgray", lwd = 3)