在R中绘制一系列圆

# 安装并加载相关包
install.packages("plotrix")
library(plotrix)

# 创建一个画布
plot(0, 0, type = "n", xlim = c(0, 10), ylim = c(0, 10), xlab = "", ylab = "")

# 定义圆心坐标和半径
x <- c(2, 5, 8)
y <- c(3, 6, 4)
radius <- c(1, 2, 1.5)

# 绘制圆
sapply(seq_along(x), function(i) {
  draw.circle(x[i], y[i], radius[i], border = "black")
})