新手练习R
plot(c(0,100), c(-40,50), type = "n", xlab = "Stock price at expiration", ylab = "Profit at expiration", asp=1)
abline(h=c(5, 15, 25, 35, 45, 55, 65, 75, 85, 95), v=c(-40, -30, -20, -10, 0, 10, 20, 30, 40), col="lightgray", lty=3)
用上面的代码画出了下面的图, 但是不知道为什么网格线无法覆盖完全。
望大神指点!
谢谢!