superhugo 发表于 2012-2-24 15:40 
谢谢小王子!要是把points的标识换成图中的点,线的标识不变,怎么设置呢?详细看了下legend命名 没有找到 ...
x <- rnorm(1000)
hist(x, freq = F)
col=rainbow(2)
points(density(x, n = 20),col=col[1])
lines(density(x, n = 200),col=col[2])
legend("topright", c("points", "line"), lty = 2:1, col = col)